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2006 European Conference on Wireless Technology最新文献

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Crossed Frame Antenna for Automotive Application for the New US Satellite Digital Audio Radio Service (SDARS) 美国新型卫星数字音频无线电业务(SDARS)车载交叉框架天线
2006 European Conference on Wireless Technology Pub Date : 2006-09-01 DOI: 10.1109/ECWT.2006.280421
J. Hopf, L. Reiter, S. Lindenmeier
{"title":"Crossed Frame Antenna for Automotive Application for the New US Satellite Digital Audio Radio Service (SDARS)","authors":"J. Hopf, L. Reiter, S. Lindenmeier","doi":"10.1109/ECWT.2006.280421","DOIUrl":"https://doi.org/10.1109/ECWT.2006.280421","url":null,"abstract":"SDARS antennas must meet the very strict specifications of the two providers Sirius and XM and many automotive aspects in addition. With some car producers the base of the antenna is coplanar with the roof, in other cases the antenna is mounted on a cast. The cast changes the antenna pattern considerably. For example at high elevation angles with a 9 mm cast the antenna gain is reduced by 2 dB in comparison to a situation where the antenna base is coplanar with the roof. This effect occurs in a similar manner with patch antennas. In this paper a crossed frame SDARS antenna is presented and it will be shown by which means the diagram can easily be modified and adapted to the specific mounting situation. This type of antenna can be used for compact diversity application as well","PeriodicalId":217349,"journal":{"name":"2006 European Conference on Wireless Technology","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115974462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
The Dielectric-Free Tapered Slot Antennas Array 无介质锥形缝隙天线阵列
2006 European Conference on Wireless Technology Pub Date : 2006-09-01 DOI: 10.1109/ECWT.2006.280485
W. Kolosowski, P. Gajewski, A. Jeziorski, E. Sedek
{"title":"The Dielectric-Free Tapered Slot Antennas Array","authors":"W. Kolosowski, P. Gajewski, A. Jeziorski, E. Sedek","doi":"10.1109/ECWT.2006.280485","DOIUrl":"https://doi.org/10.1109/ECWT.2006.280485","url":null,"abstract":"Modern wireless network requires often use of a wideband antenna system. Here, the tapered slot antenna (TSA) is discussed to solve the problem of optimal solution taking into account parameters of antenna and its cost and easy construction. The short TSA without dielectric is proposed as an element of antennas array in frequency range above 2.4 GHz. The modeling of antenna by means of the WIP-D program is described. The measurements results of one element and antennas array are presented. The obtained frequency range was 30% for VSWR<2 and above 18% for VSWR<1.3","PeriodicalId":217349,"journal":{"name":"2006 European Conference on Wireless Technology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116517301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Practical Demonstration of Filterbank Receiver for Ultra-Wideband Radios 超宽带无线电滤波器组接收机的实际演示
2006 European Conference on Wireless Technology Pub Date : 2006-09-01 DOI: 10.1109/ECWT.2006.280446
A. Mollfulleda, C. Ibars, J. A. Leyva, L. Berenguer
{"title":"Practical Demonstration of Filterbank Receiver for Ultra-Wideband Radios","authors":"A. Mollfulleda, C. Ibars, J. A. Leyva, L. Berenguer","doi":"10.1109/ECWT.2006.280446","DOIUrl":"https://doi.org/10.1109/ECWT.2006.280446","url":null,"abstract":"In this paper we show that a filterbank receiver architecture for ultra-wideband impulse radio systems is adequate in dense multi-path channels. This approach is derived from a time-frequency representation of the received signal by means of the short time Fourier transform. The receiver consists of an analog section containing bandpass filters followed by a bank of analog-to-digital converters (ADC), while digital processing then synchronizes the receiver and compensates for channel impairments. The filterbank receiver is analyzed in terms of error probability over multi-path channels, leading to a closed form expression of the bit error probability under the hypothesis of synchronized reception. Simulation results for non-line of sight channels show that the performance of the proposed receiver is close to the matched filter bound even with a moderate number of filters. We present a testbed has been implemented to provide a practical demonstration of the capabilities of the FB receiver. Measurement results on channel estimation show that dispersive channels are adequately captured","PeriodicalId":217349,"journal":{"name":"2006 European Conference on Wireless Technology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122122408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Low Cost DC to 6 GHz Electronic Step Attenuator SMT MCMs with Gate Lag Elimination By Use of High Intensity LEDs 采用高强度led消除栅极滞后的低成本DC - 6ghz电子阶跃衰减SMT mcm
2006 European Conference on Wireless Technology Pub Date : 2006-09-01 DOI: 10.1109/ECWT.2006.280518
D. Nicholson
{"title":"Low Cost DC to 6 GHz Electronic Step Attenuator SMT MCMs with Gate Lag Elimination By Use of High Intensity LEDs","authors":"D. Nicholson","doi":"10.1109/ECWT.2006.280518","DOIUrl":"https://doi.org/10.1109/ECWT.2006.280518","url":null,"abstract":"Output step attenuators for microwave test instrumentation are continually being pushed to perform faster, more reliably, with lower loss and less distortion, and at lower cost. This paper describes a state of the art GaAs FET switch IC based, high dynamic range step attenuator topology using SMT MCMs operating from DC to 6 GHz that has low loss, low distortion, fast switching speed with minimized transients, and low cost. These modules use light from high intensity LEDs reflected off of the package lid in a novel, low cost manner to provide compact, inexpensive elimination of the gate lag effect commonly associated with GaAs FET based switching, such that this attenuator provides an amplitude stable output within 20 mus of when a change of attenuation state is initiated. This is the first reported usage of light from LEDs reflected off of the lid of an MCM SMT package to eliminate the gate lag effect in a GaAs FET switch based subsystem","PeriodicalId":217349,"journal":{"name":"2006 European Conference on Wireless Technology","volume":"10 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131958644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Differential Feeding Technique for Active Integrated Antennas 有源集成天线差分馈电技术
2006 European Conference on Wireless Technology Pub Date : 2006-09-01 DOI: 10.1109/ECWT.2006.280419
K.M. Chan, E. Lee, P. Gardner
{"title":"Differential Feeding Technique for Active Integrated Antennas","authors":"K.M. Chan, E. Lee, P. Gardner","doi":"10.1109/ECWT.2006.280419","DOIUrl":"https://doi.org/10.1109/ECWT.2006.280419","url":null,"abstract":"A simple new structure for non-contact coupling of differential signals to an antenna is presented. In the new method, a differential signal generates voltage maxima on either side of a microstrip gap under a patch antenna. This technique effectively merges the front end balun or power combiner/divider into the antenna feed. This feeding method has been successfully applied to the design of simple passive microstrip antennas and active integrated antennas, AIAs. Simulated and measured results are included to validate the proposed feeding concept, and the relative merits of this and other reported differential feeding techniques are briefly assessed","PeriodicalId":217349,"journal":{"name":"2006 European Conference on Wireless Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126840608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Wideband Slot Antenna for Low-Profile Hand-held Terminal Applications 用于低轮廓手持终端应用的宽带槽天线
2006 European Conference on Wireless Technology Pub Date : 1900-01-01 DOI: 10.1109/eumc.2006.281449
P. Lindberg, E. Ojefors, A. Rydberg
{"title":"Wideband Slot Antenna for Low-Profile Hand-held Terminal Applications","authors":"P. Lindberg, E. Ojefors, A. Rydberg","doi":"10.1109/eumc.2006.281449","DOIUrl":"https://doi.org/10.1109/eumc.2006.281449","url":null,"abstract":"A quarter-wave transversal slot in the center of a handheld terminal ground plane is proposed and evaluated as a wideband antenna for low profile mobile phones. By feeding the slot with a microstrip line, a triple-resonance response is obtained from the chassis, slot and microstrip stub interaction, providing sufficient impedance bandwidth and radiation efficiency to cover the 0.9-2.7 GHz frequency range. While the introduction of a slot in the ground plane has many advantages over e.g. PIFA or patch structures, both in terms of performance and cost, the circuit floor planning becomes more complicated. To address this problem, a possible solution in terms of module partitioning and signal line routing is suggested. In addition, simulations of parasitic antenna to signal line coupling and techniques to reduce this effect are presented","PeriodicalId":217349,"journal":{"name":"2006 European Conference on Wireless Technology","volume":"25 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114025296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
An Integrated 5 GHz Wideband Quadrature Modem in SiGe: C BiCMOS Technology 基于SiGe: C BiCMOS技术的集成5ghz宽带正交调制解调器
2006 European Conference on Wireless Technology Pub Date : 1900-01-01 DOI: 10.1109/eumc.2006.281438
K. Schmalz, F. Herzel, M. Piz
{"title":"An Integrated 5 GHz Wideband Quadrature Modem in SiGe: C BiCMOS Technology","authors":"K. Schmalz, F. Herzel, M. Piz","doi":"10.1109/eumc.2006.281438","DOIUrl":"https://doi.org/10.1109/eumc.2006.281438","url":null,"abstract":"This paper presents a wideband I/Q upconverter and an I/Q downconverter for the 5 GHz band, which are integrated with a programmable 5 GHz phase-locked loop for I/Q generation. The quadrature signals are derived from a 10 GHz CMOS VCO followed by a bipolar frequency divider. The image rejection of the upconverter is as low as -38 dBc for an input frequency of 100 MHz. Phase noise at 1 MHz at the upconverter output is below -112 dBc/Hz. The two chips were produced in a 0.25 mum SiGe BiCMOS technology. They will be part of an integrated heterodyne 60 GHz wideband transceiver with 1 Gbit/s data rate","PeriodicalId":217349,"journal":{"name":"2006 European Conference on Wireless Technology","volume":"243 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115971844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on short-range transmission of UWB signals 超宽带信号的近距离传输研究
2006 European Conference on Wireless Technology Pub Date : 1900-01-01 DOI: 10.1109/eumc.2006.281446
A. Vorobyov, A. Yarovoy, L. Ligthart
{"title":"Study on short-range transmission of UWB signals","authors":"A. Vorobyov, A. Yarovoy, L. Ligthart","doi":"10.1109/eumc.2006.281446","DOIUrl":"https://doi.org/10.1109/eumc.2006.281446","url":null,"abstract":"This work focuses on transmission of UWB signals through a closely-spaced antenna pair. The spatial distribution of the electrical field strength in the vicinity of a single antenna is investigated. The power budget of a transmission through a near-field coupled antenna pair is analyzed. Different mutual positions and distances between the antennas have been investigated. It was found that the reactive antenna coupling might decrease power budget as much as 15 dB by an antenna separation of 5 mm","PeriodicalId":217349,"journal":{"name":"2006 European Conference on Wireless Technology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123203414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MAC Constraints on the Distribution of 802.11 using Optical Fibre 使用光纤分发802.11的MAC限制
2006 European Conference on Wireless Technology Pub Date : 1900-01-01 DOI: 10.1109/ECWT.2006.280480
B. Kalantarisabet, J. Mitchell
{"title":"MAC Constraints on the Distribution of 802.11 using Optical Fibre","authors":"B. Kalantarisabet, J. Mitchell","doi":"10.1109/ECWT.2006.280480","DOIUrl":"https://doi.org/10.1109/ECWT.2006.280480","url":null,"abstract":"This paper explores the MAC-protocol performance of an IEEE 802.11 network that deploys radio over fibre technology to distribute radio frequency signals from a central location to remote antenna sites for nomadic users. Our analysis is based on the current DCF access scheme specifications using both the basic access method and the RTS/CTS access mechanism. The theoretical results show that the length of the fibre is constricted to a maximum limit in a standard system. However, with minimal changes to the parameters of IEEE 802.11 standard, this limit can be expanded","PeriodicalId":217349,"journal":{"name":"2006 European Conference on Wireless Technology","volume":"44 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121003965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
Wideband Stacked Patch Antenna using inverted-F Feed for PCS, WCDMA, and WIBRO Services 用于pc、WCDMA和WIBRO业务的反转f馈电宽带堆叠贴片天线
2006 European Conference on Wireless Technology Pub Date : 1900-01-01 DOI: 10.1109/ecwt.2006.280521
Jongin Choi, Bomson Lee
{"title":"Wideband Stacked Patch Antenna using inverted-F Feed for PCS, WCDMA, and WIBRO Services","authors":"Jongin Choi, Bomson Lee","doi":"10.1109/ecwt.2006.280521","DOIUrl":"https://doi.org/10.1109/ecwt.2006.280521","url":null,"abstract":"A wideband stacked patch antenna fed by an inverted-F-shaped probe has been designed, fabricated, and measured. This feeding structure is DC shorted for DC loop monitoring. In addition, the proposed structure combines the merits of the stacked patch antennas and L-shaped feed for broadband operation. The measured impedance bandwidth of the proposed antenna is 1060 MHz (51%). The measured antenna gain is about 8.1 dBi and HPBW in the H plane is about 67deg. This radiation element can be used for 3-sector base station or repeater antennas. The numerical simulations have been validated by measurements","PeriodicalId":217349,"journal":{"name":"2006 European Conference on Wireless Technology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130087132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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