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2010 IEEE International Conference on Ultra-Wideband最新文献

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Design of distributed amplifier with L-type networks l型网络分布式放大器的设计
2010 IEEE International Conference on Ultra-Wideband Pub Date : 2010-11-01 DOI: 10.1109/ICUWB.2010.5614751
Jian Xu, Gong-Zhi Wang, Ying Zhang
{"title":"Design of distributed amplifier with L-type networks","authors":"Jian Xu, Gong-Zhi Wang, Ying Zhang","doi":"10.1109/ICUWB.2010.5614751","DOIUrl":"https://doi.org/10.1109/ICUWB.2010.5614751","url":null,"abstract":"The characteristic impedance of L-type and T-type networks are investigated for the distributed amplifier (DA) design respectively. The analysis shows that the L-type network has better frequency characteristics than the T-type one. Two distributed amplifiers with L- and T-type network are designed with 2-μm GaAs HBT process for comparison. The simulation results demonstrate that the DA with L-type network has broader 3-dB bandwidth than that of the DA with T-type network.","PeriodicalId":249652,"journal":{"name":"2010 IEEE International Conference on Ultra-Wideband","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117342864","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
Energy detection receiver with TOA estimation enabling positioning in passive UWB-RFID system 无源UWB-RFID系统中具有TOA估计的能量检测接收器，可实现定位
2010 IEEE International Conference on Ultra-Wideband Pub Date : 2010-11-01 DOI: 10.1109/ICUWB.2010.5615993
Z. Zou, Ti Deng, Qin Zou, D. Sarmiento, F. Jonsson, Lirong Zheng
{"title":"Energy detection receiver with TOA estimation enabling positioning in passive UWB-RFID system","authors":"Z. Zou, Ti Deng, Qin Zou, D. Sarmiento, F. Jonsson, Lirong Zheng","doi":"10.1109/ICUWB.2010.5615993","DOIUrl":"https://doi.org/10.1109/ICUWB.2010.5615993","url":null,"abstract":"This paper presents a passive UWB-RFID system with Time-Difference-of-Arrival (TDOA) positioning from system to circuit perspectives. Wireless powered RFID tags with UWB transmitter transmit wideband pulses to readers, allowing high accurate Time-of-Arrival (TOA) estimation. Low power low complexity TOA estimations using energy detection receiver are investigated. Max Energy Select (MES), Threshold Comparison (TC), and MES-Search-Back (MES-SB) algorithms are evaluated and analyzed. As a special focus, a prototype of the proposed energy detection receiver is designed and implemented. It consists of a 3.1–4.8GHz IR-UWB analog frontend with high speed digital circuits in 90nm CMOS, and a flexible back-end with a TOA estimator on FPGA.","PeriodicalId":249652,"journal":{"name":"2010 IEEE International Conference on Ultra-Wideband","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129297485","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: 21
Assessment of UWB antenna efficiency repeatability using reverberation chambers 利用混响室评估超宽带天线效率可重复性
2010 IEEE International Conference on Ultra-Wideband Pub Date : 2010-11-01 DOI: 10.1109/ICUWB.2010.5615264
S. Boyes, Yi Huang, N. Khiabani
{"title":"Assessment of UWB antenna efficiency repeatability using reverberation chambers","authors":"S. Boyes, Yi Huang, N. Khiabani","doi":"10.1109/ICUWB.2010.5615264","DOIUrl":"https://doi.org/10.1109/ICUWB.2010.5615264","url":null,"abstract":"This paper presents a discussion to determine whether the radiation efficiency of UWB antennas across the entire UWB range (3.1–10.6 GHz) can be obtained using a reverberation chamber, such that consistently repeatable results are readily available. The technique applied is based upon a frequency domain analysis. The procedure has been applied to a UWB antenna and the results found that repeatable results can be obtained in a time frame that isn't too obtrusive; yet yielding a lowest repeatable accuracy of 3% in the final results.","PeriodicalId":249652,"journal":{"name":"2010 IEEE International Conference on Ultra-Wideband","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130865424","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: 8
Microwave absorbing properties of sinuous antenna filled with absorbing material 填充吸波材料的弯曲天线的微波吸收特性
2010 IEEE International Conference on Ultra-Wideband Pub Date : 2010-11-01 DOI: 10.1109/ICUWB.2010.5615267
Yuan Yan, Q. Cao
{"title":"Microwave absorbing properties of sinuous antenna filled with absorbing material","authors":"Yuan Yan, Q. Cao","doi":"10.1109/ICUWB.2010.5615267","DOIUrl":"https://doi.org/10.1109/ICUWB.2010.5615267","url":null,"abstract":"In this paper, we studied and designed a wideband four-arm sinuous antenna for 4–14GHz. To get unidirectional performance, we added a backed reflective cavity at one side of the antenna. It was found that better unidirectional performance was obtained with cavity-backed filled with absorbing material. Also the absorbing properties of the absorbing material were discussed in this paper. In the end, we adjusted and validated the antenna with absorbing material in EM Simulation Software.","PeriodicalId":249652,"journal":{"name":"2010 IEEE International Conference on Ultra-Wideband","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122217777","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: 5
Data and carrier interleaving in six-port receivers for increased data rate 数据和载波交错在六端口接收器，以提高数据速率
2010 IEEE International Conference on Ultra-Wideband Pub Date : 2010-11-01 DOI: 10.1109/ICUWB.2010.5614449
J. Osth, Owais, M. Karlsson, A. Serban, Shaofang Gong
{"title":"Data and carrier interleaving in six-port receivers for increased data rate","authors":"J. Osth, Owais, M. Karlsson, A. Serban, Shaofang Gong","doi":"10.1109/ICUWB.2010.5614449","DOIUrl":"https://doi.org/10.1109/ICUWB.2010.5614449","url":null,"abstract":"This paper proposes how antenna polarization can be utilized to increase the maximum data rate in a multiple six-port receiver system. By utilizing data and carrier interleaving, the total information bandwidth increases and therefore the maximum data rate. Prototype antennas were manufactured and the measured results were later used in a simulation model with three channels for verification of the concept.","PeriodicalId":249652,"journal":{"name":"2010 IEEE International Conference on Ultra-Wideband","volume":"327 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121839492","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
FDTD modeling for ultra-wideband unipolar and bipolar electrical pulse generated by photoconductive switches transmission line 光导开关传输线产生的超宽带单极和双极电脉冲的FDTD建模
2010 IEEE International Conference on Ultra-Wideband Pub Date : 2010-11-01 DOI: 10.1109/ICUWB.2010.5615061
Zhu Yanwu, Qiu Yang, Tian Jin, Xu Shejiao, Ma Zhengping
{"title":"FDTD modeling for ultra-wideband unipolar and bipolar electrical pulse generated by photoconductive switches transmission line","authors":"Zhu Yanwu, Qiu Yang, Tian Jin, Xu Shejiao, Ma Zhengping","doi":"10.1109/ICUWB.2010.5615061","DOIUrl":"https://doi.org/10.1109/ICUWB.2010.5615061","url":null,"abstract":"D'Alembert's method is used to analyze transient pulse propagation in the transmission line. A total reflection border and the implementation of a new field source excitation are devised to satisfy the initial conditions and boundary conditions of the transmission line. Finite time difference method coupled with the D'Alembert's formula algorithm solves the pulse generation and propagation by photoconductive switches (PCSS) in the transmission line under bias voltage. The computed propagation results are discussed. The effect of Blumlein line geometrics on pulse amplitude is studied. Experiments results that compare well with the simulated values are presented. An ultra short bipolar pulse generator based on the PCSS is developed.","PeriodicalId":249652,"journal":{"name":"2010 IEEE International Conference on Ultra-Wideband","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125261075","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
Low-power CMOS energy detector for noncoherent impulse-radio UWB receivers 用于非相干脉冲无线电UWB接收机的低功耗CMOS能量检测器
2010 IEEE International Conference on Ultra-Wideband Pub Date : 2010-11-01 DOI: 10.1109/ICUWB.2010.5614627
N. Dehaese, M. Battista, R. Vauché, S. Bourdel, J. Gaubert, O. Fourquin, N. Tall
{"title":"Low-power CMOS energy detector for noncoherent impulse-radio UWB receivers","authors":"N. Dehaese, M. Battista, R. Vauché, S. Bourdel, J. Gaubert, O. Fourquin, N. Tall","doi":"10.1109/ICUWB.2010.5614627","DOIUrl":"https://doi.org/10.1109/ICUWB.2010.5614627","url":null,"abstract":"A low power CMOS energy detector for 3.1–10.6 GHz non-coherent impulse-radio UWB receivers is implemented in a 0.13 µm CMOS process. The detector architecture is based on a squarer circuit realized with MOS transistors biased in the sub-threshold region. The squared signal is integrated using a low pass amplifier that allows the receiver gain to be optimized. A comparator with a tunable threshold is then used as a decision circuit. Experimental results show that a BER of 10− is achieved for a peak-to-peak voltage of 140 mV at the detector input at 200 Mb/s data rate. Assuming that the detector is driven by a LNA of gain 22 dB, leads to a receiver sensitivity of −45 dBm. The receiver dissipates only 25 mW, corresponding to an energy efficiency of 0.13 nJ/bit and the chip occupies 0.7 mm2.","PeriodicalId":249652,"journal":{"name":"2010 IEEE International Conference on Ultra-Wideband","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122729575","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: 11
A novel U-shaped antenna for UWB applications 一种用于超宽带应用的新型u形天线
2010 IEEE International Conference on Ultra-Wideband Pub Date : 2010-11-01 DOI: 10.1109/ICUWB.2010.5616047
Qiang Zhang, Fushun Zhang, Yang Zhu, Jing-Xiu Huang, K. Dong, P. Zhu
{"title":"A novel U-shaped antenna for UWB applications","authors":"Qiang Zhang, Fushun Zhang, Yang Zhu, Jing-Xiu Huang, K. Dong, P. Zhu","doi":"10.1109/ICUWB.2010.5616047","DOIUrl":"https://doi.org/10.1109/ICUWB.2010.5616047","url":null,"abstract":"In this paper, a ultra-wideband (UWB) antenna with U-shaped for UWB applications is proposed. The antenna has a modified U-shaped radiating patch, microstrip line feeding, and a ground plane with two round corners for improving the return loss performance in the required band. Measurement results show that the proposed UWB antenna has a ultra-wide band from 3 to 11GHz with VSWR level less than 2, relative stable radiation characteristics and constant gain performance are also achieved in simulation results.","PeriodicalId":249652,"journal":{"name":"2010 IEEE International Conference on Ultra-Wideband","volume":"15 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131134167","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
A 4GHz low power glitch-free phase-switching divide-by-15/16 prescaler in 0.18-µm CMOS 一种采用0.18µm CMOS的4GHz低功耗无故障相位开关/ 15/16预分频器
2010 IEEE International Conference on Ultra-Wideband Pub Date : 2010-11-01 DOI: 10.1109/ICUWB.2010.5614682
Wei Lv, Lu Huang, Xuefei Bai
{"title":"A 4GHz low power glitch-free phase-switching divide-by-15/16 prescaler in 0.18-µm CMOS","authors":"Wei Lv, Lu Huang, Xuefei Bai","doi":"10.1109/ICUWB.2010.5614682","DOIUrl":"https://doi.org/10.1109/ICUWB.2010.5614682","url":null,"abstract":"This paper presents a low power glitch-free dual-modulus (15/16) prescaler based on the phase-switching for Ultra-Wide Band (UWB) transceiver. An inherently glitch-free phase-switching prescaler is realized by the adoption of a reverse switching sequence without any additional complicated circuit. A simplified model of the source coupled logic (SCL) structure is proposed to optimize the power of the divide-by-2 divider. Followed by the first divide-by-2 stage, a synchronous divide-by-4 stage is used to generate eight 45°-spaced signal, which further decreases the operating frequency and the phase sequence is determined. Fabricated with SMIC 0.18µm CMOS technology, the proposed prescaler can operate from 2.8GHz to 5.8GHz while consuming 6.5mA (including test buffers) from a 1.8V voltage. The core area is 0.33mm×0.33mm.","PeriodicalId":249652,"journal":{"name":"2010 IEEE International Conference on Ultra-Wideband","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131418966","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: 2
Frequency and MIMO impact on ray tracing based UWB channel modelling 频率和MIMO对基于UWB信道建模的光线追踪的影响
2010 IEEE International Conference on Ultra-Wideband Pub Date : 2010-11-01 DOI: 10.1109/ICUWB.2010.5615197
H. M. Asif, S. Chadwick, Yujie Zeng, B. Honary, Hasan Ahmed
{"title":"Frequency and MIMO impact on ray tracing based UWB channel modelling","authors":"H. M. Asif, S. Chadwick, Yujie Zeng, B. Honary, Hasan Ahmed","doi":"10.1109/ICUWB.2010.5615197","DOIUrl":"https://doi.org/10.1109/ICUWB.2010.5615197","url":null,"abstract":"It is a challenging task to handle dense multipath environment in a wireless communication channel. Various techniques were suggested to handle this issue such as power control, antenna, time and frequency diversity etc. However, antenna diversity is considered to be the most practical way to handle multipath fading. In this paper, a deterministic UWB channel model was developed based on ray-tracing technique using the art of 3D computer game technology. Reflection, refraction and scattering phenomena were successfully implemented. The model was then enhanced to use multiple antennas on both sides of the system. Simulation results show great improvement in channel impulse response (CIR) in case of multiple antennas. Moreover, the frequency effect on channel impulse response was analyzed for 500 MHz–4 GHz range. Our results indicate that the change in frequency does not affect the channel behaviour a lot but changes the pattern of received rays.","PeriodicalId":249652,"journal":{"name":"2010 IEEE International Conference on Ultra-Wideband","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131706642","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: 1
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