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UWB Antenna with En...
UWB Antenna with Enhanced Directivity for Applications in Microwave Medical Imaging
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- Awan, Dawar (författare)
- Department of Electrical Technology, University of Technology Nowshera, Nowshera, 24170, Pakistan; Department of Electrical Engineering, University of Engineering and Technology Peshawar, Peshawar, 25120, Pakistan
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- Bashir, Shahid (författare)
- Department of Electrical Engineering, University of Engineering and Technology Peshawar, Peshawar, 25120, Pakistan
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- Khan, Shahid (författare)
- Department of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
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- Al-Bawri, Samir Salem (författare)
- Space Science Center, Institute of Climate Change, Universiti Kebangsaan Malaysia (UKM), Bangi, 43600, Malaysia
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- Dalarsson, Mariana (författare)
- KTH,Elektroteknik
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(creator_code:org_t)
- MDPI AG, 2024
- 2024
- Engelska.
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Ingår i: Sensors. - : MDPI AG. - 1424-8220. ; 24:4
- Relaterad länk:
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https://doi.org/10.3...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Microwave medical imaging (MMI) is experiencing a surge in research interest, with antenna performance emerging as a key area for improvement. This work addresses this need by enhancing the directivity of a compact UWB antenna using a Yagi-Uda-inspired reflector antenna. The proposed reflector-loaded antenna (RLA) exhibited significant gain and directivity improvements compared to a non-directional reference antenna. When analyzed for MMI applications, the RLA showed a maximum increase of 4 dBi in the realized gain and of 14.26 dB in the transmitted field strength within a human breast model. Moreover, it preserved the shape of time-domain input signals with a high correlation factor of 94.86%. To further validate our approach, another non-directional antenna with proven head imaging capabilities was modified with a reflector, achieving similar directivity enhancements. The combined results demonstrate the feasibility of RLAs for improved performance in MMI systems.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- directional antenna
- microwave medical imaging (MMI)
- tumor sensing
- ultra-wideband (UWB) antenna
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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