| 1. |
- Andrijevic, Goran, et al.
(författare)
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A fully integrated low-IF DVB-T receiver architecture
- 2004
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Ingår i: 2004 INTERNATIONAL SYMPOSIUM ON SYSTEM-ON-CHIP, PROCEEDINGS. - 0780385586 ; , s. 189-192
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Konferensbidrag (refereegranskat)abstract
- We propose a fully integrated DVB-T receiver architecture for low cost CMOS implementation. The receiver uses a dual-IF architecture to cover the receive bands from 170 MHz to 862 MHz and a Low-IF of 4.57 MHz. Key performance values meet the DVB-T requirements with competitive performance (Sensitivity 72.5 dBm, Noise Figure 66 dB, Adjacent Channel Protection Ratio-ACPR=43dB, available SNR=28 dB) and suggest that low cost receivers are realistic in volume for the coming digital broadcasting systems.
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| 2. |
- Andrijevic, Goran, et al.
(författare)
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Multistandard receiver for home networking and digital media
- 2004
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Ingår i: 22ND NORCHIP CONFERENCE, PROCEEDINGS. - NEW YORK : IEEE. - 0780385101 ; , s. 131-134
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Konferensbidrag (refereegranskat)abstract
- We propose a fully integrated multistandard receiver architecture that fulfills coming media and networking needs of homes. The receiver uses a dual-IF architecture to cover receive bands from 170 MHz to 920 MHz and the Industrial, Scientific and Medical (ISM) band at 2.4GHz. Key performance values meet the DVB-T, Zigbee, Bluetooth and 802.11b requirements (Sensitivity -72.5dBm. available SNR=28dB. Noise Figure 6.7dB. Adjacent Channel Protection Ratio-ACPR=-44dB, IIP3 = -11 dBm).
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| 3. |
- Magnusson, Håkan, et al.
(författare)
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A compact dual-band power amplifier driver for 2.4GHz and 5.2GHz WLAN transmitters
- 2007
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Ingår i: Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium. - 9781424405305 ; , s. 83-86
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Konferensbidrag (refereegranskat)abstract
- This paper presents a dual-band power amplifier (PA) driver with matched output operating in the 2.4 GHz and 5.2 GHz ISM bands. The use of tunable differential inductors both in the RF choke and the matching circuit saves significant die-area compared to traditional configurations of integrated PA drivers. The fabricated circuit size is as small as 0.48 mm 2 for the used 0.18 mu m CMOS process, saving about 0.5 mm(2) silicon area. Measurement results show that the circuit achieves 10.4 dB gain and a maximum output power of 13 dBm at 2.4 GHz while the gain is 5.1 dB and maximum output power is 8.7dBm at 5.2 GHz. The circuit dissipates 13mA from a 1.8V supple.
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| 4. |
- Magnusson, Håkan, et al.
(författare)
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A cross-coupled dual-loop feedback power amplifier driver
- 2005
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Ingår i: Proceedings of the 2005 European Conference on Circuit Theory and Design. - 0780390660 - 9780780390669 ; , s. 309-312
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Konferensbidrag (refereegranskat)abstract
- This paper presents a wide-band power amplifier (PA) driver with matched output. A dual-loop cross-coupled feedback is applied on a simple two stage core amplifier. The use of a dual-loop feedback provides a broad-band 50 Ω output match without the use of any area consuming matching networks. The PA driver exhibits a gain higher than 6.4 dB, more than +1.9dBm 1-dB compression point with S22 less than -22 dB at the output, while dissipating 42 mA from a 1.8V supply. The output IP3 is better than +13.9 dBm at 2.4 GHz.
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| 5. |
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| 6. |
- Magnusson, Håkan, et al.
(författare)
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Multiband multi-standard transmitter using a compact power amplifier driver
- 2005
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Ingår i: 2005 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, Digest of Papers. - NEW YORK, NY : IEEE. - 0780389832 ; , s. 491-494
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Konferensbidrag (refereegranskat)abstract
- This paper presents a multistandard transmitter solution using a new power amplifier (PA) driver [1] operating in the broadcast, mobile, and the 2&5 GHz ISM bands. The use of dual-loop feedback in the driver provides a matched output without area consuming matching networks. The circuit size is as small as 0.3 mm(2) for the used 0.18 mu m CMOS process, saving about 0.7 mm(2) silicon area. Measurement results show a gain higher than 7.8 dB with a maximum output power of +4 dBm for all bands and using a supply voltage of 1.8V.
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| 7. |
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| 8. |
- Moll, Ulrika, et al.
(författare)
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Pregnancies in prediabetic women
- 2008
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Ingår i: Diabetologia. - : Springer Science and Business Media LLC. - 1432-0428 .- 0012-186X. ; 51:S1, s. 467-468
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Konferensbidrag (refereegranskat)
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| 9. |
- Abalo, Ernesto, et al.
(författare)
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Emerging Patterns of Inclusion and Exclusion in the Era of E-government : A Study of Users of ‘Swedish Public Employment Service’ on the Internet
- 2008
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Ingår i: Media and Global Divides. - Stockholm : Organizing Committee for the IAMCR Congress 2008. - 918835430X ; , s. 44-45
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Konferensbidrag (refereegranskat)abstract
- In the area of governmental information for and services to citizens digitalization has certainly become a buzzword. Framed within the discourses on e-government or e-governance – or different mixtures of the two – various analyses have tried to point out, or even anticipate possible consequences of the appropriation of digital technologies, mainly the internet, in governmental services.On the one hand, these analyses have pointed out a great deal of opportunities connected to the incorporation of the internet into governmental information and services. Policy makers have been quick to point to the increased accessibility as a great opportunity for the citizens; in Sweden this vision of accessibility has even been referred to as ‘24:7-governmental agencies’. Academics, among others, have also suggested that the digitalization of information and services opens up new possibilities for citizen control of governments.On the other hand, a number of problems have also been identified. For instance, the digitalization of public registers holding personal information has been interpreted as a threat to the citizens’ integrity: Will digitalization bring a new surveillance society? The most frequently debated problem, however, at least within research, has been the fear of digital divides. Will the internet create digital cleavages between different groups of citizens?So far, however, neither the hopeful nor the dystopian analyses have made enough efforts to critically evaluate their claims. Such evaluations can start from different points of departure, and in this paper the starting point is the citizens as users of governmental information and services through the internet: What patterns of inclusion and exclusion emerge as a governmental agency digitalizes its information and services by making them increasingly internet based?The paper presents statistical data from a survey of 762 unemployed citizens using the Swedish Public Employment Service, a governmental agency that has come to rely specifically heavy on internet based information and service. The initial analysis of data reveals interesting differences between social groups in terms of both perception and use of the internet – in general – and the resources offered by SPES in particular. For instance, the users’ various degrees of education is a strong, determining factor when it comes to use of internet SPES’ services.The paper starts from a conceptual elaboration of various notions of e-government and e-governance. Thereafter, the survey data is described and elaborated on before moving into a discussion of the wider significance of the findings: What does data suggest in terms of patterns of inclusion in and exclusion from a society in which governmental agencies, to an increasing extent, use the internet for their information and services?
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| 10. |
- Alejano, L. R., et al.
(författare)
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Rock engineering design and the evolution of Eurocode 7
- 2013
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Ingår i: ISRM International Symposium - EUROCK 2013. - : International Society for Rock Mechanics. - 9781138000803 ; , s. 777-782
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Konferensbidrag (refereegranskat)abstract
- The Eurocode for Geotechnical Design, EN-1997-1:2004, informally known as Eurocode 7 or EC7, was fully implemented within the European Union in 2010. This Eurocode is intended to apply to all geotechnical engineering design, including rock engineering. In recognition that all codes must continue to evolve in order to remain applicable, and the long time that such evolution takes, work is already underway under the auspices of the European Committee for Standardisation, CEN, to identify how the code should develop for future revisions. This paper presents a summary of the maintenance procedures for Eurocodes in general and the specific maintenance work currently being undertaken on EC7 in respect of rock engineering design. It also highlights potential future development of EC7, and the need for enthusiastic involvement by the European rock engineering community to direct these developments.
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