| 1. |
- Ahmad, Ashfaq, et al.
(författare)
-
Design, Fabrication, and Measurements of Extended L-Shaped Multiband Antenna for Wireless Applications
- 2018
-
Ingår i: Applied Computational Electromagnetics Society Journal. - : Applied Computational Electromagnetics Society (ACES). - 1054-4887. ; 33:4, s. 388-393
-
Tidskriftsartikel (refereegranskat)abstract
- This article expounds a multi-band compact shaped antenna, which is based on CPW ground plane. FR-4 with a thickness of 1.6 mm is used as a substrate for the proposed antenna. The proposed antenna is capable of operating at 1.56 GHz for (Global Positioning System), 2.45 GHz (Wireless Local Area Network) and 4.49 GHz (Aeronautical Mobile Telemetry (AMT) fixed services). The efficiency at 1.56, 2.45, and 4.49 GHz is 79.7, 76.9 and 76.7%, respectively. The VSWR of the presented antenna is less than 1.5 at all the desired resonance modes, which confirms its good impedance matching. The performance of the proposed antenna is evaluated in terms of VSWR, return loss, radiation pattern and efficiency. CST (R) MWS (R) software is used for simulations. In order to validate the simulation results, a prototype of the designed antenna is fabricated and a good agreement is found between the simulated and measured results.
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| 2. |
- Ahmad, Ashfaq, et al.
(författare)
-
Flexible and Compact Spiral-Shaped Frequency Reconfigurable Antenna for Wireless Applications
- 2020
-
Ingår i: IETE Journal of Research. - : TAYLOR & FRANCIS LTD. - 0377-2063 .- 0974-780X. ; 66:1, s. 22-29
-
Tidskriftsartikel (refereegranskat)abstract
- A flexible, spiral-shaped frequency reconfigurable antenna with a compact size (20 x 24 mm(2)) is presented. The proposed antenna has a low-profile planar structure and is able to operate at five different frequency bands, i.e., 4.19-4.48, 5.98-6.4, 3.42-4.0, 5.4-5.68, and 6.8-7.0 GHz. The multiband operation enables the antenna to cover aeronautical radio navigation, fixed satellite communication, WLAN, and WiMAX standards. A radiating element is backed by Rogers (R) 5880 substrate with a thickness of 0.508 mm and dielectric constant of 2.2. The spiral shape is achieved by introducing different strips. Frequency reconfiguration is achieved by the incorporation of a lumped element in a strip, so that the antenna can switch between different resonances. To validate the performance of the antenna, the prototype of the design was fabricated and tested. Good acquiescent is seen between simulated and measured results. The proposed antenna operates efficiently with appreciable return loss, directivity, bandwidth, and peak gain.
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| 3. |
- Akhtar, Faiza, et al.
(författare)
-
A Flexible and Compact Semicircular Antenna for Multiple Wireless Communication Applications
- 2018
-
Ingår i: Radioengineering. - : SPOLECNOST PRO RADIOELEKTRONICKE INZENYRSTVI. - 1210-2512 .- 1805-9600. ; 27:3, s. 671-678
-
Tidskriftsartikel (refereegranskat)abstract
- This work presents a compact, quad-band planar antenna intended for assimilation into flexible and conformal devices. The CPW-fed semicircular shaped prototype with rake-shaped slots is designed, realized and characterized experimentally. The frequency bands covered by the proposed radiator are centered at 2.5, 3.7, 5.5 and 8 GHz with measured impedance bandwidths of 16%, 13.5%, 11.8% and 14.63%, respectively. The proposed antenna is thus enabled to support WLAN, ISM, Bluetooth, WiMAX LTE and X-band applications. The antenna exhibits a significant gain. The radiation characteristics of the proposed radiator are measured in concave and convex bent shapes at various radii to analyze its flexibility. Performance of the antenna remains almost unaffected in the bent situation. Measurements demonstrate good coherence with simulations. The compactness and good performance of the design both in bent and unbent conditions proves it to be the better contender for future multiband conformal wireless applications.
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| 4. |
- Ali, Amjad, et al.
(författare)
-
RFID Humidity Sensor Tag for Low-cost Applications
- 2017
-
Ingår i: APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL. - : APPLIED COMPUTATIONAL ELECTROMAGNETICS SOC. - 1054-4887. ; 32:12, s. 1083-1088
-
Tidskriftsartikel (refereegranskat)abstract
- This article presents a low-cost, flexible, chipless Radio Frequency Identification (RFID) tag for humidity monitoring applications. The tag exhibits moisture sensing feature within a compact geometrical dimension of 20mm x 17.6mm. The design is loaded with 12 resonators, where each resonator represents 1 bit in the frequency domain. For the designed 12-bit tag, 11 inverted C-shaped resonators are dedicated for encoding 11-bit information in their spectral signature. An integrated meandered-shaped resonator, covered with moisture sensitive Kapton (R) HN film, functions as a 1-bit moisture sensor. It is deployed for monitoring relative humidity (RH) levels, simultaneously. The passive RFID tag is realized on Taconic TLX-0 and has an operational bandwidth of 2.62 GHz. Furthermore, the design is modeled and analyzed for multiple substrates. The performance of the sensor tag for various humidity levels indicates that it is a potential solution for inexpensive sensing applications.
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| 5. |
- Amin, Yasar, et al.
(författare)
-
Blueprint and integration of vastly efficient 802.11A WLAN front-end
- 2006
-
Ingår i: WSEAS Transactions on Electronics. - 1109-9445. ; 3:4, s. 258-261
-
Tidskriftsartikel (refereegranskat)abstract
- Next generation wireless communications terminals will demand the use of advanced component integration processes and high density packaging technologies in order to reduce size and to increase performance. This paper presents high density multilayer interconnects and integrated passives used to design high performance prototype filter for 5GHz wireless LAN receiver realized on MCM-D substrate. The thin film implementation of Multichip Module technology is identified as a useful platform for the integration of GaAs MMIC and silicon device technologies for microwave applications where performance, size and weight are critical factors. The ability of the MCM-D technology to provide controlled impedance, microstrip structures and integrated thin film passive components with useful performance in the microwave frequency regime has now been demonstrated.
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| 6. |
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| 7. |
- Amin, Yasar, et al.
(författare)
-
Design and Analysis of Efficient and Compact Antenna for Paper Based UHF RFID Tags
- 2008
-
Ingår i: ISAPE 2008. - NEW YORK : IEEE. - 9781424421923 ; , s. 62-65
-
Konferensbidrag (refereegranskat)abstract
- Paper substrate is one of the paramount nominees for Radio Frequency Identification (RFID) tags but at the same time it is extremely prone towards environmental changes. In this paper, antennas for UHF RFID tags on paper based substrate are investigated and analyzed for the first time to evaluate the effect of change in dielectric constant on the antenna parameters and performance. On the basis of analysis a concrete meander line antenna is proposed, designed and evaluated which has tremendous immunity towards variation in dielectric constant.
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| 8. |
- Amin, Yasar, et al.
(författare)
-
Design and Characterization of Efficient Flexible UHF RFID Tag Antennas
- 2009
-
Ingår i: 2009 3RD EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION. - NEW YORK : IEEE. - 9781424447534 ; , s. 2682-2684
-
Konferensbidrag (refereegranskat)abstract
- In this paper meander line antennas with end tip loading, designed for UHF RFID tags are presented. These novel antennas are screen printed on Kapton HN for European frequency band (866-868 MHz) and for North American frequency band (902-928 MHz). Asahi ink is used for screen printing of 25 mu m thick antenna traces which remains conductive even after several times sharp bending of these tag antennas. The results show that the antennas exhibit high performance regarding smaller area, high realized gain and better return loss in the frequency band of interest. These antennas are extremely flexible which give autonomy for their applications.
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| 9. |
- Amin, Yasar, et al.
(författare)
-
Design and Fabrication of Wideband Archimedean Spiral Antenna Based Ultra-Low Cost "Green" Modules for RFID Sensing and Wireless Applications
- 2012
-
Ingår i: Progress In Electromagnetics Research-PIER. - 1559-8985. ; 130, s. 241-256
-
Tidskriftsartikel (refereegranskat)abstract
- A parametric analysis is performed for a wideband Archimedean spiral antenna in recognition of an emerging concept to integrate RFID along with several applications by using a single antenna. The antenna is fabricated using state-of-the-art inkjet printing technology on various commercially available paper substrates to provide the low-cost, flexible RF modules for the next generation of "green" electronics. The effects on electromagnetic characteristics of the planar Archimedean spiral antenna, due to the use of paper are investigated besides other parameters. The proposed antenna is evaluated and optimized for operational range from 0.8-3.0GHz. It exhibits exceptional coverage throughout numerous RFID ISM bands so do for other wireless applications.
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| 10. |
- Amin, Yasar, et al.
(författare)
-
Design of Novel Paper-based Inkjet Printed Rounded Corner Bowtie Antenna for RFID Applications
- 2010
-
Ingår i: Sensors & Transducers Journal. - : International Frequency Sensor Association (IFSA). - 2306-8515 .- 1726-5479. ; 115:4, s. 160-167
-
Tidskriftsartikel (refereegranskat)abstract
- This paper presents a novel inkjet printed rounded corner bowtie antenna with T-matching stubs on paper substrate which is the cheapest and widest available substrate. The antenna exhibits compact size with outstanding read range and complete coverage of UHF RFID band (860-960 MHz). The results show extreme immunity of proposed antenna against paper dielectric constant variation.
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| 11. |
- Amin, Yasar, et al.
(författare)
-
Development and Analysis of Flexible UHF RFID Antennas For "Green" Electronics
- 2012
-
Ingår i: Progress In Electromagnetics Research-PIER. - 1070-4698. ; 130, s. 1-15
-
Tidskriftsartikel (refereegranskat)abstract
- In this paper, novel Bowtie antennas which cover complete UHF RFID band (860-960MHz), fabricated on various ultra-low-cost substrates using state-of-the-art printing technologies are investigated as an approach that aims to accommodate the antenna during the package printing process whilst faster production on commercially available paper. The proposed antenna structures are evaluated in reference to circuit and field concepts, to exhibit extreme degree of functional versatility. These antennas are developed to cater the variations which appear in electromagnetic properties and thickness of paper substrate due to various environmental effects. Computed (simulated) and well-agreed measurement results confirm a superior performance of the tag modules while stepping towards next generation of "green" tags.
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| 12. |
- Amin, Yasar, et al.
(författare)
-
Electromagnetic Analysis of Radio Frequency Identification Antennas for Green Electronics
- 2013
-
Ingår i: Electromagnetics. - : Informa UK Limited. - 0272-6343 .- 1532-527X. ; 33:4, s. 319-331
-
Tidskriftsartikel (refereegranskat)abstract
- This article demonstrates in-depth electromagnetic analysis of a radio frequency identification tag antenna manufactured by inkjet printing technology on different paper substrates to achieve ultra-low cost flexible radio frequency identification tags using a novel hole-matching technique for reducing the consumption of substrate material, and conductive ink. Nevertheless, the electromagnetic properties of the paper substrate are vulnerable to various environmental effects. Thus, the proposed antenna design is optimized for consistent wideband performance throughout the complete UHF radio frequency identification band (860960 MHz) while presenting a greater degree of material insensitivity. An advanced antenna design methodological analysis is performed to accomplish an extended read range, while exhibiting benchmarking results when across cardboard cartons filled with metal or water containing objects.
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| 13. |
- Amin, Yasar, et al.
(författare)
-
Evolutionary Versatile Printable RFID Antennas For "Green" Electronics
- 2012
-
Ingår i: Journal Electromagnetic Waves and Applications. - : Taylor & Francis. - 0920-5071 .- 1569-3937. ; 26:2-3, s. 264-273
-
Tidskriftsartikel (refereegranskat)abstract
- The development of low cost directly printable RFID tag antennas is essential for item level tracking. We present evolutionary design approach to achieve robust extremely versatile RFID antennas on paper/flexible substrates which allow a simple integration directly on, e.g., paperboard in a roll-to-roll production line. Fully integrated printed tags for "green" electronics are designed for operability in frequencies 866-868 MHz & 902-928 MHz. We present benchmarking results for various challenges of antennas in terms of ruggedness, reliability and flexing performance.
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| 14. |
- Amin, Yasar, et al.
(författare)
-
"Green" Wideband Log-Spiral Antenna for RFID Sensing and Wireless Applications
- 2012
-
Ingår i: Journal of Electromagnetic Waves and Applications. - UK : Taylor & Francis. - 0920-5071 .- 1569-3937. ; 26:14-15, s. 2043-2050
-
Tidskriftsartikel (refereegranskat)abstract
- The novel idea of integrating RFID with sensors along with other wireless applications by using single tag antenna is implemented, by fabricating proposed antenna using state-of-the-art inkjet printing technology on commercially available paper substrates. For the first time, a parametric analysis is performed for realization of planar log-spiral antenna on paper for operational range from 0.8-3.0GHz, which also exhibits excellent coverage throughout numerous RFID ISM bands, and for other wireless applications. The ANSYS HFSS tool is used to design and predict the performance of the proposed antenna in terms of radiation pattern and input impedance.
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| 15. |
- Amin, Yasar, et al.
(författare)
-
Green wideband RFID tag antenna for supply chain applications
- 2012
-
Ingår i: IEICE Electronics Express. - : Institute of Electronics, Information and Communications Engineers (IEICE). - 1349-2543. ; 9:24, s. 1861-1866
-
Tidskriftsartikel (refereegranskat)abstract
- In this paper, we demonstrate an RFID tag antenna manufactured by advanced inkjet printing technology on paper substrate using novel hole-matching technique for reducing the consumption of substrate material and conductive ink while attaining green RFID tags. In-depth electromagnetic analysis is performed methodologically for optimizing the parameters that effectuate the antenna dimensions. The antenna design is optimized for consistent wideband performance and extended read range throughout the complete UHF RFID band (860-960MHz), while exhibiting benchmarking results when n across cardboard cartons filled with metal or water containing objects.
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| 16. |
- Amin, Yasar, et al.
(författare)
-
Inkjet Printed Paper Based Quadrate Bowtie Antennas For UHF RFID Tags
- 2009
-
Ingår i: 11TH INTERNATIONAL CONFERENCE ON ADVANCED COMMUNICATION TECHNOLOGY, VOLS I-III, PROCEEDINGS, - UBIQUITOUS ICT CONVERGENCE MAKES LIFE BETTER!. - TAEJON : ELECTRONICS TELECOMMUNICATIONS RESEARCH INST. - 9788955191387 ; , s. 109-112
-
Konferensbidrag (refereegranskat)abstract
- Paper substrate is one of the paramount nominees for Radio Frequency Identification (RFID) tags, for the reason that it is one of the widely and the cheapest available substrates. In this paper, for the first time quadrate bowtie antennas with round corners [1] are realized and analyzed on paper substrate for UHF RFID tags. These inkjet printed antennas exhibit high performance which give freedom for their applications. Their area is smaller than the general triangle bowtie antenna and have advantages of smaller area, better return loss in high frequency and higher gain in normal direction of antenna plane compared with general triangular bowtie antenna.d
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| 17. |
- Amin, Yasar, et al.
(författare)
-
Low Cost Paper Based Bowtie Tag Antenna for High Performance UHF RFID Applications
- 2009
-
Ingår i: NANOTECH CONFERENCE & EXPO 2009, VOL 1, TECHNICAL PROCEEDINGS - NANOTECHNOLOGY 2009. - BOCA RATON : CRC PRESS-TAYLOR & FRANCIS GROUP. - 9781439817827 ; , s. 538-541
-
Konferensbidrag (refereegranskat)abstract
- Radio frequency identification (RFID) antenna's versatility in terms of complete coverage of UHF RFID band (860-960 MHz), while keeping the cost factor low, is an important aspect of today's growing demand for security and tracking of multiple objects in a very short time in addition to tag's readability across the globe. This paper presents a novel inkjet printed rounded corner bowtie antenna with T-matching stubs on paper substrate which is the cheapest and widest available substrate. The antenna exhibits compact size with outstanding read range.
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| 18. |
- Amin, Yasar, et al.
(författare)
-
Performance-optimized Printed Wideband RFID Antenna and Environmental Impact Analysis
- 2024
-
Ingår i: ETRI Journal. - Korea : ETRI. - 1225-6463 .- 2233-7326.
-
Tidskriftsartikel (refereegranskat)abstract
- This paper presents performance optimized RFID tag antenna, developed by using commercially accessible paper substrates and advanced inkjet printing process to guarantee mechanical flexibility and ultra-low production costs. The proposed antenna structure can endure the variations which emerge in electromagnetic properties of paper substrate due to varying environmental effects. Hole-matching technique is implemented to eliminate the matching network for reducing the consumption of conductive ink. The proposed structure is uniquely evaluated by demonstrating, sustainability and environmental impact analysis that validate the potential for ultra-low cost mass production of RFID tags for future generation of organic electronics. The antenna performance is assessed for cardboard cartons exclusively containing metal cans and water bottles. The experimental characterization of the proposed antenna endorses the wider bandwidth to cover UHF RFID ISM band (860-960MHz), which empowers its usage throughout the globe for supply chain applications. The improved design effectuates return loss of better than -15dB over a wide frequency range while exhibiting outstanding readability from 10.1 meters.
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| 19. |
- Amin, Yasar, et al.
(författare)
-
Performance-Optimized Quadrate Bowtie RFID Antennas For Cost-Effective and Eco-Friendly Industrial Applications
- 2012
-
Ingår i: Progress in Electromagnetics Research-PIER. - : EMW Publishing. - 1559-8985. ; 126, s. 49-64
-
Tidskriftsartikel (refereegranskat)abstract
- Fully integrated printed RFID antennas show potential solution for item level labeling applications. In order to accommodate the antenna during the package printing process, it is vastly preferred that antenna structures are printed on paper substrates. However, the electromagnetic properties and thickness of paper substrates are susceptible to change due to various environmental effects. Thus, adequately consistent in performance and material insensitive printed Quadrate Bowtie RFID antennas are proposed. This paper presents an in-depth efficient optimization for high performance tag antenna designs for operability in frequencies 866-868MHz & 902-928MHz. It is demonstrated that the proposed antennas can tolerate a considerable variation in the permittivity on thin paper substrates, and present benchmarking results when n across metal and water containing objects.
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| 20. |
- Amin, Yasar
(författare)
-
Printable Green RFID Antennas for Embedded Sensors
- 2013
-
Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- In the recent years, radio-frequency identification (RFID) technology has been widely integrated into modern society applications, ranging from barcode successor to retail supply chain, remote monitoring, detection and healthcare, for instance. In general, an RFID tag or transponder is composed of an antenna and an application-specific integrated circuit chip. In a passive UHF RFID system (which is the focus of presented research), the communication between the transponder tag and the reader is established by modulating the radar cross section (RCS) of the transponder tag. The need for flexible RFID tags has recently been increased enormously; particularly the RFID tags for the UHF band ensure the widest use but in the meantime face considerable challenges of cost, reliability and environmental friendliness.The multidimensional focus of the aforementioned research encompasses the production of low-cost and reliable RFID tags. The state-of-the-art fabrication methods and materials for proposed antennas are evaluated in order to surmount the hurdles for realization of flexible green electronics. Moreover, this work addresses the new rising issues interrelated to the field of economic and eco-friendly tags comprising of paper substrate. Paper substrates offer numerous advantages for manufacturing RFID tags, not only is paper extensively available, and inexpensive; it is lightweight, recyclable and can be rolled or folded into 3D configurations.The most important aspect of an RFID system's performance is the reading range. In this research several pivotal challenges for item-level tagging, are resolved by evolving novel structures of progressive meander line, quadrate bowtie and rounded corner bowtie antennas in order to maximize the reading distance with a prior selected microchip under the various constraints (such as limited antenna size, specific antenna impedance, radiation pattern requirements). This approach is rigorously evolved for the realization of innovative RFID tag antenna which has incorporated humidity sensor functionality along with calibration mechanism due to distinctiveness of its structural behavior which will be an optimal choice for future ubiquitous wireless sensor network (WSN) modules.The RFID market has grown in a two-dimensional trend, one side constitutes standalone RFID systems. On the other side, more ultramodern approach is paving its way, in which RFID needs to be integrated with broad operational array of distinct applications for performing different functions including sensors, navigation, broadcasting, and personal communication, to mention a few. Using different antennas to include all communication bands is a straightforward approach, but at the same time, it leads to increase cost, weight, more surface area for installation, and above all electromagnetic compatibility issues. The indicated predicament is solved by realization of proposed single wideband planar spirals and sinuous antennas which covers several bands from 0.8-3.0GHz. These antennas exhibit exceptional performance throughout the operational range of significance, thus paving the way for developing eco-friendly multi-module RF industrial solutions.
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| 21. |
- Amin, Yasar, et al.
(författare)
-
Printable RFID antenna with embedded sensor and calibration functions
- 2013
-
Ingår i: Progress In Electromagnetics Research Symposium Proceedings, Stockholm, Sweden, Aug. 12-15, 2013. - : Electromagnetics Academy. - 9781934142264 ; , s. 567-570
-
Konferensbidrag (refereegranskat)abstract
- An RFID antenna with integrated humidity sensor and calibration functionality for wireless sensor network is proposed. The antenna is composed of series and shunt stubs for impedance matching and reliability for near-field communication. The innovative ladder contour structure plays the key role for humidity sensing, and sensor calibration. The quadrangular end-tip loading is employed to offer capacitance and stability for far-field communication. The prototypes of the antenna are fabricated and tested: antenna effectively senses the ambient humidity levels while demonstrating stable behavior for RFID communication. The antenna has a compact size of 1 × 10cm for 902-928 MHz RFID band.
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| 22. |
- Amin, Yasar, et al.
(författare)
-
RFID antenna humidity sensor co-design for USN applications
- 2013
-
Ingår i: IEICE Electronics Express. - : Institute of Electronics, Information and Communications Engineers (IEICE). - 1349-2543. ; 10:4, s. 20130003-
-
Tidskriftsartikel (refereegranskat)abstract
- We demonstrate for the first time an RFID tag antenna which itself is humidity sensor and also provides calibration functionality. The antenna is comprised of T-matching network and horizontally meandered lines for impedance matching and reliable near-field communication. The novel contour design provides humidity sensing, and calibration functions whilst concurrently acts as a radiating element along with quadrangular capacitive tip-loading with covered middle portion for far-field communication. The inkjet printed prototypes of the antenna provide effective ambient humidity sensing while demonstrating stable RFID communication. The antenna has a compact size of 1.1 x 10.2 cm for 902-928MHz band.
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| 23. |
- Amin, Yasar, et al.
(författare)
-
Robust Flexible High Performance UHF RFID Tag Antenna
- 2009
-
Ingår i: 2009 11TH ELECTRONICS PACKAGING TECHNOLOGY CONFERENCE (EPTC 2009). - NEW YORK : IEEE. - 9781424450992 ; , s. 235-239
-
Konferensbidrag (refereegranskat)abstract
- This paper describes a novel Flexo, Screen and Inkjet printed rounded edges bowtie antenna with T-matching stubs on paper, Kapton (HN) and Teonex Q51 substrate. Paper is one of the paramount nominees for Radio Frequency Identification (RFID) tags, for the reason that it is one of the widely and the cheapest available substrates. Kapton (HN) and Teonex Q51 are distinguished for their flexibility and reliability. The antenna exhibits compact size with outstanding read range of 4 meters and complete coverage of UHF RFID band (860-960 MHz). The results show extreme immunity of versatile antenna against harsh environments. These antennas are flexible which give autonomy for their applications.
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| 24. |
- Amin, Yasar, et al.
(författare)
-
SoP design on liquid crystal polymer substrate for 5 GHz RF receiver front-end module
- 2005
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Ingår i: International Microelectronics and Packaging Society - 1st International Conference and Exhibition on Device Packaging 2005. - 9781604235722 ; , s. 236-240
-
Konferensbidrag (refereegranskat)abstract
- Next generation wireless communications terminals will demand the use of advanced component integration processes and high density packaging technologies in order to reduce size and to increase performance. This paper presents highdensity multilayer interconnects and integrated passives used to design high performance prototype filter for 5GHz wireless LAN receiver realized on liquid crystal polymer (LCP) substrate. The thin film implementation of Multichip Module technology is identified as a useful platform for the integration of GaAs MMIC and silicon device technologies for microwave applications where performance, size and weight are critical factors. The ability of the MCM-D technology to provide controlled impedance, microstrip structures and integrated thin film passive components with useful performance in the microwave frequency regime has now been demonstrated.
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| 25. |
- Amin, Yasar, et al.
(författare)
-
Two-arm Sinuous Antenna for RFID Ubiquitous Sensors and Wireless Applications
- 2012
-
Ingår i: Journal Electromagnetic Waves and Applications. - UK : Taylor & Francis. - 0920-5071 .- 1569-3937. ; 26:17-18, s. 2365-2371
-
Tidskriftsartikel (refereegranskat)abstract
- For the first time, two-arm planar sinuous antenna is demonstrated to realize the emerging concept of integrating RFID functionalities along with sensors and other wireless applications for "green" electronics. In-depth, parametric analysis is performed for the proposed antenna which is fabricated on a paper substrate using revolutionary inkjet printing technology to develop a system-level solution for ultra-low-cost mass production of multipurpose wireless tags in an approach that could be easily expanded to other microwave and wireless "cognition" applications. The proposed antenna exhibits excellent performance throughout several RFID ISM bands and for other wireless applications in its operational range from 0.8 to 3.0 GHz.
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| 26. |
- Anam, Hafsa, et al.
(författare)
-
Directly Printable Frequency Signatured Chipless RFID Tag for IoT Applications
- 2017
-
Ingår i: Radioengineering. - : SPOLECNOST PRO RADIOELEKTRONICKE INZENYRSTVI. - 1210-2512 .- 1805-9600. ; 26:1, s. 139-146
-
Tidskriftsartikel (refereegranskat)abstract
- This paper proposes a low-cost, compact, flexible passive chipless RFID tag that has been designed and analyzed. The tag is a bowtie-shaped resonator based structure with 36 slots; where each patch is loaded with 18 slots. The tag is set in a way that each slot in a patch corresponds to a metal gap in the other patch. Hence there is no mutual interference, and high data capacity of 36 bits is achieved in such compact size. Each slot corresponds to a resonance frequency in the RCS curve, and each resonance corresponds to a bit. The tag has been realized for Taconic TLX-0, PET, and Kapton (R) HN (DuPont (TM)) substrates with copper, aluminum, and silver nanoparticlebased ink (Cabot CCI-300) as conducting materials. The tag exhibits flexibility and well optimized while remaining in a compact size. The proposed tag yields 36 bits in a tag dimension of 24.5. 25.5 mm(2). These 36 bits can tag 2(36) number of objects/items. The ultimate high capacity, compact size, flexible passive chipless RFID tag can be arrayed in various industrial and IoT-based applications.
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| 27. |
- Arshad, Farzana, et al.
(författare)
-
Compact beam-switchable antenna for mm-wave 5G handheld devices
- 2021
-
Ingår i: IET Microwaves, Antennas & Propagation. - : WILEY. - 1751-8725 .- 1751-8733. ; 15:7, s. 778-787
-
Tidskriftsartikel (refereegranskat)abstract
- An electronically beam-steerable antenna (BSA) is envisioned. The presented BSA is a possible solution to overthrow the limitations inherent to phased antenna arrays. The design consists of a gap coupling inset feed rectangular patch (driven element) and 3 x 1 passive parasitic patches deployed on both sides of the driven patch. Prototype having 20 x 20 mm dimensions is printed on Rogers(R) RT/duroid(R)5870. Four switches are used to load the reactive impedance on parasitic patches, which in turn, change the phases of surface current on parasitic elements and the driven element. Based on the different ON and OFF configuration of switches in parasitic array elements, the main beam is steered along with different directions. The simulated results show that the design can operate between 26.8 and 30.3 GHz a wide impedance bandwidth |S-11|< -10 dB (12.5%) with a peak gain of 8.9 dBi and wide 3-dB scanning angle that is, -37 degrees to 156 degrees in the azimuth plane. The exhibited performance of BSA with favourable characteristics, such as wideband, adequate gain, wide-angle beam switching, and low profile renders the BSA a good candidate for 5G millimetre wave handheld devices. Moreover, to corroborate the performance, the design is fabricated, and experimental measurements were performed. Congruence is observed between the experimentally measured and computationally simulated results. The simulated results of spherical coverage analysis of BSA with the integration of smartphone form factor are also presented.
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| 28. |
- Aslam, Bilal, et al.
(författare)
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A compact implantable RFID tag antenna dedicated to wireless health care
- 2017
-
Ingår i: International Journal of RF and Microwave Computer-Aided Engineering. - : John Wiley & Sons. - 1096-4290 .- 1099-047X. ; 27:5
-
Tidskriftsartikel (refereegranskat)abstract
- Implantable tag antennas are an integral component of contemporary pervasive patient monitoring setups envisioned to reduce the medical errors and improve the quality of health care facilities. These tags, embedded into the human body, transmit critical patient information to the external equipment via a wireless communication link. This research article presents an implantable compact folded dipole antenna of size 10 mm 3 15 mm 3 2 mm, designed to operate in the industrial-scientificmedical band (2.4-2.48GHz). A three-layered phantom representing the human arm is used to evaluate the subcutaneous antenna performance. The tag antenna embedded in the middle of the fat layer offers a maximum gain of 216.3 dBi. The tag antenna performance as a function of implant position and phantom dimensions is analyzed. Link budget calculations show that with the achieved antenna gain the link power exceeds the required power by 38.37 dBm, and hence wireless communication is viable.
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| 29. |
- Aslam, Bilal, et al.
(författare)
-
A high capacity tunable retransmission type frequency coded chipless radio frequency identification system
- 2019
-
Ingår i: International Journal of RF and Microwave Computer-Aided Engineering. - : WILEY. - 1096-4290 .- 1099-047X. ; 29:9
-
Tidskriftsartikel (refereegranskat)abstract
- This article presents a 12-bit frequency coded chipless RFID system in the frequency range of 3 to 6 GHz. The system consists of a fully printable chipless tag and a pair of high-gain reader antennas. The tag also incorporates its own antennas to improve the read range. Information is encoded into frequency spectrum using a multi-resonant circuit. The circuit consists of multiple microstrip U and L-shaped open stub resonators patterned in a unique configuration. The proposed configuration aids in capturing more data in a reduced space as well as tunable frequency operation. Tag and reader antennas utilize techniques such as stepped impedance feeding line, defective partial ground plane, and stair-step patch structure to achieve wide-band impedance bandwidth in miniature size. The results of the wireless measurements in the non-anechoic environment show that the proposed system has a reading range of more than 20 cm. The presented system possesses great potential for low-cost short-range inventory tracking.
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| 30. |
- Aslam, Bilal, et al.
(författare)
-
A low profile miniature RFID tag antenna dedicated to IoT applications
- 2019
-
Ingår i: Electromagnetics. - : Taylor & Francis. - 0272-6343 .- 1532-527X. ; 39:6, s. 393-406
-
Tidskriftsartikel (refereegranskat)abstract
- RFID tag antennas with stable performance on the diverse electromagnetic mounting platforms are an integral part of the ubiquitous RFID systems. This research article presents a novel tag antenna design that facilitates the said objective. The proposed antenna consists of a modified H-shaped slot structure that ensures considerable robustness from the application environment through confining the surface current density within the antenna structure. The antenna offers a tunable bandwidth of 40 MHz within the microwave band of (2.4-2.5) GHz. The proposed tag antenna exhibits excellent response on metallic platforms of different sizes and thicknesses with an effective gain of almost four times of that in free space. Furthermore, the designed tag antenna performs adequately well on low-medium permittivity dielectrics (glass, paper, and plastic) and RF absorbers (water). The free space and on-metal performance of the proposed tag antenna are verified by testing a prototype realized on the FR4 substrate.
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| 31. |
- Aslam, Bilal, et al.
(författare)
-
Frequency signature chipless RFID tag with enhanced data capacity
- 2015
-
Ingår i: IEICE Electronics Express. - : Institute of Electronics, Information and Communications Engineers (IEICE). - 1349-2543. ; 12:17
-
Tidskriftsartikel (refereegranskat)abstract
- Frequency signature chipless RFID tag based on spurline resonator is presented in this letter. Resonant response of spurline is explained by analyzing the surface current distribution. Chipless tag consists of a data encoding circuit and two cross polarised monopole antennas. The tag has a data capacity of 16 bits in the range 2.13 to 4.1 GHz. Data capacity of data encoding circuit is enhanced by repositioning the spurlines. The prototype of the tag is fabricated on FR4 substrate. Developed tag can be used for cost effective identification of items in the industry.
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| 32. |
- Aslam, Bilal, et al.
(författare)
-
Low-profile magnetically coupled dual resonance patch antenna for UHF RFID applications
- 2021
-
Ingår i: AEU - International Journal of Electronics and Communications. - : Elsevier BV. - 1434-8411 .- 1618-0399. ; 133
-
Tidskriftsartikel (refereegranskat)abstract
- A novel low-profile metal mountable UHF RFID tag antenna is presented. The tag antenna design consists of two resonating patches with different resonant frequencies fed through a joint inductive loop. This design topology offers benefits such as bandwidth enhancement in the single band and the possibility of attaining a tunable dualband coverage in the UHF RFID band. The proposed antenna structure doesn't require any electrical connection (shorting pins/shorting plates/via holes) and therefore facilitates fabrication through a conventional RFID inlay manufacturing process. Fabrication and testing of a prototype of the proposed antenna design are carried out. The prototype antenna achieves free space and an on-metal reading range of better than 8 m and 11 m respectively in the US RFID band of 902-928 MHz.
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| 33. |
- Aslam, B., et al.
(författare)
-
Miniaturized decoupled slotted patch RFID tag antennas for wearable health care
- 2017
-
Ingår i: International Journal of RF and Microwave Computer-Aided Engineering. - : John Wiley & Sons. - 1096-4290 .- 1099-047X. ; 27:1
-
Tidskriftsartikel (refereegranskat)abstract
- In this article, a couple of two-layered RFID tag antenna designs exhibiting improved performance descriptors for on-body applications are presented. The antennas are designed to operate in the microwave band (2.4–2.48 GHz) ensuring high data transmission rates ideal for real-time subject monitoring applications. The radiating element of both the antennas is a slotted patch structure provisioned with a pair of T-shaped slots realized on a commercial FR4 substrate. The augmentation of a systematic sequence of narrow comb-like etchings into the design enhances the impedance bandwidth considerably. A high permittivity silicon layer embedded with the radiating patch provides resilience from the human body dielectric losses. A modified antenna design utilizing patch miniaturization technique, resulting in an overall footprint reduction by 32%, is also proposed. The designed tag antennas offer a gain of more than 1.8 dBi and an attractive read range greater than 6.8 m in the operating band.
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| 34. |
- Ejaz, A., et al.
(författare)
-
Towards durable and efficient antenna with SAR reduction analysis for on-body applications
- 2022
-
Ingår i: Frequenz. - : Walter de Gruyter GmbH. - 0016-1136 .- 2191-6349. ; 76:7-8, s. 429-439
-
Tidskriftsartikel (refereegranskat)abstract
- This paper is focused on providing a viable solution to wearable antenna performance disconcertment caused by the underlying human body. Direct placement of the antenna on the body yields undesired results owing to the frequency detuning effect. The simplest possible way out is to make use of a metallic reflector. Hence, a reflector backed antenna is presented for 5.8 GHz ISM band with total lateral dimensions of 28 × 28 × 13.58 mm3. The reflector makes use of a conformal high dielectric laminate coated with a thin copper layer owing to which the assembled design achieves low SAR (Specific Absorption Rate). The prototype provides excellent results at the cost of some extra volume occupation in an off-body direction. Another AMC (Artificial Magnetic Conductor) backed technique is followed and implemented separately to have the structural compactness lacking in the former case. The antenna at hand is backed by a 2 × 2 array of AMC unit cells. The overall design dimensions are reduced. The reflector backed design achieves 8.2 dB gain, above 90% efficiency, and 99% bandwidth overlap with the primary antenna. The AMC backed design provides good spectrum coverage from 5.73 to 5.94 GHz with high gain. Free space response, on-body performance, and investigation of SAR analysis of the proposed designs substantiate effective wireless data transfer in body-centric communication.
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| 35. |
- Habib, A., et al.
(författare)
-
Chipless slot resonators for IoT system identification
- 2016
-
Ingår i: IEEE International Conference on Electro Information Technology. - : IEEE Computer Society. - 9781467399852 ; , s. 341-344
-
Konferensbidrag (refereegranskat)abstract
- In this paper chipless RFID tag with integrated sensor for IoT application is presented. The tag is capable of transmitting information of 9-bit data. The tag structure is analyzed for both FR4 and Kapton HN substrates having different dielectric constants. It has been observed that with the change in dielectric permittivity, there will be shift in resonances. The tag can be used for monitoring and sensing moisture. The tag comprises of 9 ring resonators. The overall radius of designed chipless tag is 7mm. The compact chipless RFID tag is optimized for radio frequency ranges from 5.1-11.4 GHz using FR4 substrate and from 5.8-12.5 GHz using Kapton HN substrate. The novelty of this design relies on flexible nature of tag. The presented tag is very cheap and can be deployed for various low cost sensing applications.
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| 36. |
- Habib, A., et al.
(författare)
-
Directly printable compact chipless RFID tag for humidity sensing
- 2017
-
Ingår i: IEICE Electronics Express. - : Institute of Electronics Information Communication Engineers. - 1349-2543. ; 14:10
-
Tidskriftsartikel (refereegranskat)abstract
- In this letter, 8-bit paper based printable chipless tag is presented. The tag not only justifies the green electronic concept but also it is examined for sensing functionality. The compact tag structure comprises of seven L-shaped and one I-shaped dipole structure. These conducting tracks/dipole structures are of silver nano-particle based ink having a conductivity of 1.1 × 107 S/m. Each conducting track yields one bit corresponding to one peak. The tag design is optimized and analyzed for three different flexible substrates i.e. paper, Kapton® HN, and PET. The tag has ability to identify 28 = 256 objects, by using different binary combinations. The variation in length of particular conducting strip results in a shift of peak for that specific conducting track. This shift corresponds to logic state-1. The response of the tag for paper, Kapton® HN, and PET substrates is observed in the frequency band of 2.2-6.1 GHz, 2.4-6.3 GHz, and 2.5-6.5 GHz, respectively. The tag has an attractive nature because of its easy printability and usage of low-cost, flexible substrates. The tag can be deployed in various low-cost sensing applications.
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| 37. |
- Habib, Ayesha, et al.
(författare)
-
Directly Printable Organic ASK Based Chipless RFID Tag for IoT Applications
- 2017
-
Ingår i: Radioengineering. - : Společnost pro radioelektronické inženýrství. - 1210-2512 .- 1805-9600. ; 26:2, s. 453-460
-
Tidskriftsartikel (refereegranskat)abstract
- A chipless RFID tag with unique ASK encoding technique is presented in this paper. The coding efficiency is enhanced regarding tag capacity. The amplitude variations of the backscattered RFID signal is used for encoding data instead of OOK Strips of different widths are used to have amplitude variations. The ASK technique is applied using three different substrates of Kapton (R) HN, PET, and paper. To incorporate ASK technique, dual polarized rhombic shaped resonators are designed. These tags operate in the frequency range of 3.1-10.6 GHz with size of 70 x 42 mm(2). The presented tags are flexible and offer easy printability. The paper-based decomposable organic tag appears as an ultra low-cost solution for wide scale tracking. This feature enables them to secure a prominent position in the emerging fields of IoT and green electronics.
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| 38. |
- Habib, A., et al.
(författare)
-
Frequency signatured directly printable humidity sensing tag using organic electronics
- 2017
-
Ingår i: IEICE Electronics Express. - : Institute of Electronics Information Communication Engineers. - 1349-2543. ; 14:3
-
Tidskriftsartikel (refereegranskat)abstract
- In this paper chipless RFID tag, capable of carrying 9-bit data is presented. The tag is optimized for several flexible substrates. With growing information and communication technology, sensor integration with data transmission has gained significant attention. Therefore, the tag with the same dimension is then optimized using paper substrate. For different values of permittivity, the relative humidity is observed. Hence, besides carrying information bits, the tag is capable of monitoring and sensing the humidity. The overall dimension of the tag comprising of 9 ring slot resonators is 7 mm. Due to its optimization on the paper substrate, the tag can be an ideal choice for deploying in various low-cost sensing applications.
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| 39. |
- Jabeen, Iqra, et al.
(författare)
-
Data-Dense and Miniature Chipless Moisture Sensor RFID Tag for Internet of Things
- 2019
-
Ingår i: Electronics. - : MDPI. - 2079-9292. ; 8:10
-
Tidskriftsartikel (refereegranskat)abstract
- A novel and miniaturized semi-elliptical 20-bit fully passive chipless RFID sensor tag is proposed in this article. The realized sensor tag is made up of semi-elliptical shaped open-end slots within the compact size of 25 mm x 17 mm. The multi-substrate analysis of the proposed tag is examined using non-flexible and flexible materials. The articulated tag configuration is capable of monitoring moisture levels when the largest resonator is covered by a heat-resistant sheet of Kapton HN (DuPontTM). The proposed tag functions in the operational frequency band of 4.1 GHz-16 GHz and possesses the overall bit density of 4.70 bit/cm(2). The structure is composed of a thin passive substrate layer topped with an active layer of conductive path and is considered as a potential candidate for low-cost identification of the tagged objects. In addition to that, its moisture sensing property and flexible nature make it a reliable smart sensor for conformal applications.
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| 40. |
- Jabeen, Iqra, et al.
(författare)
-
Elliptical slot based polarization insensitive compact and flexible chipless RFID tag
- 2019
-
Ingår i: International Journal of RF and Microwave Computer-Aided Engineering. - : WILEY. - 1096-4290 .- 1099-047X. ; 29:11
-
Tidskriftsartikel (refereegranskat)abstract
- A miniaturized, polarization insensitive, and fully passive chipless radio frequency identification tag is proposed in this research article. The realized tag is based on slotted elliptical structures in a nested loop fashion with identical lengths and widths of slot resonators. Alteration of data sequence is accomplished by addition and elimination of nested resonators in the geometric structure. The tag is capable to encode 10 bits of data and covers spectral range from 3.6 to 15.6 GHz. The formulated structure demonstrates polarization insensitive characteristic. The data encoding structure is analyzed and optimized for different substrates that are, Rogers RT/duroid/5880, Rogers RT/duroid/5870, and Taconic TLX-0 over the miniaturized footprint of 22.8 x 16 mm(2). The presented tag is robust, novel, compact, and flexible exhibiting a stable response to impinging electromagnetic waves at various angles of incidence.
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| 41. |
- Jabeen, I., et al.
(författare)
-
Miniaturized Slot Based Chipless RFID Tag for IoT Applications
- 2019
-
Ingår i: RAEE 2019 - International Symposium on Recent Advances in Electrical Engineering. - : Institute of Electrical and Electronics Engineers Inc.. - 9781728130729
-
Konferensbidrag (refereegranskat)abstract
- In this paper, a compact 13-bit fully passive chipless RFID tag is presented. The overall size of the proposed chipless tag is 16.65 mm x 17 mm. The resonating structure is loaded with thirteen C-shaped nested slots. The presented tag is optimized and analyzed for three distinct substrates that are, Rogers RT/duroid®/5870, Taconic TLX-0 and Rogers RT/duroid®/5880. The articulated tag structure possesses the capability of generating 213= 8192 exclusive IDs for low-cost identification of various objects. Flexibility is achieved using Rogers RT/duroid®/5880 substrate over the aspired frequency band of 3 GHz - 12 GHz. Hence, the robust chipless tag is an ideal choice to be deployed on curved surfaces for different cost effective IoT based industrial applications.
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| 42. |
- Javed, Aisha, et al.
(författare)
-
A Bowtie Slotted Quad-Band Notched UWB Antenna with Defected Ground Structure
- 2019
-
Ingår i: APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL. - : APPLIED COMPUTATIONAL ELECTROMAGNETICS SOC. - 1054-4887. ; 34:11, s. 1725-1730
-
Tidskriftsartikel (refereegranskat)abstract
- A novel compact bowtie slotted circular patch antenna with quad-band notched characteristics is demonstrated in this work. The presented prototype is ascertained on FR-4 substrate. Initially, an Ultra-Wideband (3.1-10.6 GHz) antenna is achieved. Later, undesirable bands between 3.55-5.16, 5.52-5.73, 6.44-6.78 and 7.61-10.6 GHz are eliminated by incorporating slots in the patch. By proper optimization of the patch as well as ground plane, four resonant bands are achieved between 2.56-3.53, 5.22-5.5, 5.7-6.4 and 6.81-7.53 GHz supporting LTE2500, WiMAX, WLAN, and X-band applications. For good impedance matching, the antenna employs a very unique bat-shaped defected ground plane structure. The peak gain of 3.7 dB is obtained by the proposed radiator. A good agreement is observed between the measured and simulated results.
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| 43. |
- Javed, Aqsa, et al.
(författare)
-
Miniaturized cross-lines rectangular ring-shaped flexible multiband antenna
- 2019
-
Ingår i: Applied Computational Electromagnetics Society Journal. - : Applied Computational Electromagnetics Society (ACES). - 1054-4887. ; 34:5, s. 625-630
-
Tidskriftsartikel (refereegranskat)abstract
- A compact, flexible antenna for wireless applications, i.e., WLAN/WiMAX/Wi-Fi, UMTS2100, C-Band, and DSRC is presented. The quad-band antenna is designed and analyzed in terms of efficiency, gain, radiation pattern, return loss, and VSWR. The optimized design consists of a CPW fed rectangular ring patch with the semi-circular ground. The cross-lines and the semicircular ground is investigated to ascertain the multiband effect. A concept of inset feed mechanism is also interpolated to enhance impedance matching. The framed antenna is examined under the bent condition as well. The reported work is an apt candidate for the proposed applications because of its high efficiency of 95% with a peak gain of 3.22 dBi along with VSWR less than 2. With stable radiation pattern and bandwidth, there is a justified concurrence between simulated and measured results.
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| 44. |
- Javed, Nimra, et al.
(författare)
-
Directly Printable Moisture Sensor Tag for Intelligent Packaging
- 2016
-
Ingår i: IEEE Sensors Journal. - : Institute of Electrical and Electronics Engineers (IEEE). - 1530-437X .- 1558-1748. ; 16:16, s. 6147-6148
-
Tidskriftsartikel (refereegranskat)abstract
- A compact, flexible 24-b dual-polarized chip-less radio frequency identification tag with a size of 20.6mm x 19.9mm is realized. The tag structure is optimized and analyzed for Taconic, Kapton HN and organic substrate. The prototype fabricated on HP photopaper with silver nanoparticles-based conductive ink is exhibiting a behavior of moisture sensor. The proposed moisture sensor tag has a bandwidth of 13.5GHz. The direct printability of moisture sensor tag makes it suitable for intelligent packaging and various low-cost applications.
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| 45. |
- Javeda, Nimra, et al.
(författare)
-
16-bit frequency signatured directly printable tag for organic electronics
- 2016
-
Ingår i: IEICE Electronics Express. - : Institute of Electrical and Electronics Engineers (IEEE). - 1349-2543. ; 13:11
-
Tidskriftsartikel (refereegranskat)abstract
- A compact 16-bit chipless RFID moisture sensor tag with a size of 13.2 x 19.6mm(2) is designed, fabricated and analyzed. The presented moisture sensor tag is realized on a paper substrate with silver nano particle based ink patches as conducting material. The frequency band of operation is 0.5 to 14 GHz having an overall bandwidth of 13.5 GHz. It is loaded with slots of different lengths and widths, etched on the conductive material. The tag exhibits stable sensing characteristic towards moisture in the real environment. The flexible, sensitive and environmental friendly nature of the proposed tag makes it suitable for wider, low-cost and organic electronics applications.
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| 46. |
- Kanth, R. K., et al.
(författare)
-
Analysis, design and development of novel, low profile 2.487 GHz microstrip antenna
- 2010
-
Ingår i: 2010 14th International Symposium on Antenna Technology and Applied Electromagnetics and the American Electromagnetics Conference, ANTEM/AMEREM 2010. - 9781424450503 ; , s. 1-4
-
Konferensbidrag (refereegranskat)abstract
- International Telecommunication Union Radio Communication Sector ( ITU-R) has assigned 1.176 GHz and 2.487 GHz respectively in L and S band to Regional Navigational Satellite System (RNSS) for satellite navigation purpose. In this paper attempt has been made to design a novel, low profile compact microstrip antenna which achieves required specification such as gain of -4dBi up to ±50° and bandwidth of 30 MHz. The design of S band antenna was carried out using Ansoft Designer software, was fabricated and the required performance of antenna was measured in terms of its return loss, VSWR and gain radiation pattern. The return loss of the developed antenna was measured with the vector network analyzer and its gain radiation pattern in anechoic chamber and the performance of its measurements were compared with the analyzed results.
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| 47. |
- Kanth, R. K., et al.
(författare)
-
Comparative End-of-Life Study of Polymer and Paper Based Radio Frequency Devices
- 2012
-
Ingår i: International Journal of Environmental Protection. - 2224-7777. ; 2, s. 23-27
-
Tidskriftsartikel (refereegranskat)abstract
- In this work end-of-life (EOL) analysis of polymer and paper based radio frequency devices have been carried out. Polymer and paper based RFID antenna has been chosen as a radio frequency device. An attempt has been made to investigate and evaluate the environmental emissions at end-of-life-cycle stage and to explore type and quantity of emissions at their disposal. The Gabi’s balance calculation methodology has been employed to determine amount of environmental emissions at the end-of-life cycle stage. Each significant component of the antenna and their corresponding emissions has been investigated in this paper. We have also compared the corresponding emissions to air and fresh water in both the technologies i.e. incineration and land-filling at EOL stage.
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| 48. |
- Kanth, R. K., et al.
(författare)
-
Design of sierpinski grid patch antenna for multiband application
- 2013
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Ingår i: Progress In Electromagnetics Research Symposium Proceedings, Stockholm, Sweden, Aug. 12-15, 2013. - 9781934142264 ; , s. 577-582
-
Konferensbidrag (refereegranskat)abstract
- The purpose of this paper is two-fold. Firstly, we have attempted to design a planar Sierpinski fractal antenna with stacked configuration for multiband applications. The stacked configuration of Sierpinski fractal patch and Sierpinski grid are employed to improve the multiband characteristics. The operating frequencies obtained are at 3.3 GHz, 5GHz, 5.74 GHz and 5.9 GHz which covers the bands useful for HIPERLAN2 frequencies and for implementation in futuristic WiFi enabled devices and PCI Cards for mobile internet. The Simulated results show that the operating frequencies obtained are spread over a wide range of frequency band compared to the simple Sierpinski fractal patch antenna. Secondly this paper aims at evaluating the sustainability and life cycle management of proposed antenna.
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| 49. |
- Kanth, Rajeev Kumar, et al.
(författare)
-
Evaluating Sustainability, Environmental Assessment and Toxic Emissions during Manufacturing Process of RFID Based Systems
- 2011
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Ingår i: Dependable, Autonomic and Secure Computing (DASC), 2011 IEEE Ninth International Conference on. - 9781467300063 ; , s. 1066-1071
-
Konferensbidrag (refereegranskat)abstract
- The present state of the art research in the direction of embedded systems demonstrate that analysis of life-cycle, sustainability and environmental assessment have not been a core focus for researchers. To maximize a researcher's contribution in formulating environmentally friendly products, devising green manufacturing processes and services, there is a strong need to enhance life-cycle awareness and sustainability understandings among embedded systems researchers, so that the next generation of engineers will be able to realize the goal of a sustainable life-cycle. In this work an attempt has been made to investigate and evaluate the life-cycle management and environmental assessment in fabricating processes of the RFID based systems. We have chosen a general life cycle assessment approach which involves the collection and evaluation of quantitative data on the inputs and outputs of materials and energy associated with the RFID based systems. Based on the developed generic models, we have obtained the results in terms of environmental emissions for a production of paper substrate printed RFID antennas. We also make an attempt to raise several sustainability issues and quantify the toxic emissions during the manufacturing process.
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| 50. |
- Kanth, R. K., et al.
(författare)
-
Quantifying the environmental footprint of rigid substrate printed antenna
- 2012
-
Ingår i: Proceedings of the 2012 IEEE Conference on Technology and Society in Asia, T and SA 2012. - : IEEE. - 9781467320702 ; , s. 6397973-
-
Konferensbidrag (refereegranskat)abstract
- Quantifying environmental footprint is an important task for the embedded system researcher as this study keep them aware of environmental impacts' threat toward green and healthy living of human beings. In this work we have presented a study on analysis of sustainability and environmental impacts assessment in manufacturing process of rigid substrate printed antennas. Life cycle assessment approach has been employed to quantify and asses the environmental footprint. A case study has been carried out for epoxy resin substrate based tip truncated equilateral triangle microstrip antenna. The subtractive printing methodology have been conducted to trace the required antenna pattern. The output parameters have been analyzed in terms of global warming potential, ozone layer depletion potential, human toxicity and acidification potential. Gabi's balance approach has been utilized to analyze the environmental emissions to the air, fresh water, sea water, agricultural and industrial soils. The consumption of resources has also been shortly described in this paper.
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