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2013 IEEE International Wireless Symposium (IWS)最新文献

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Novel 4 loops coupler in microwave cavity measurement of permittivity 微波腔介电常数测量中的新型四回路耦合器
2013 IEEE International Wireless Symposium (IWS) Pub Date : 2013-04-14 DOI: 10.1109/IEEE-IWS.2013.6616803
Hai Zhang, B. Zeng, Lei Ao, Nannan Li, Yong Fang, Jing Guo, Jingang Han
{"title":"Novel 4 loops coupler in microwave cavity measurement of permittivity","authors":"Hai Zhang, B. Zeng, Lei Ao, Nannan Li, Yong Fang, Jing Guo, Jingang Han","doi":"10.1109/IEEE-IWS.2013.6616803","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2013.6616803","url":null,"abstract":"Electromagnetic coupling effects on a novel loop coupler in a TE011 circular cavity are studied theoretically and experimentally. This novel 4 loops coupler is developed for avoiding and suppressing the spurious modes in the TE011 circular cavity of the microwave permittivity measurement system. The operating principles and impedance of the novel 4 loops coupler are investigated. This method has the advantage of simple setting of the apparatus and fast tuning of the system. The experimental results are compliant with simulations.","PeriodicalId":344851,"journal":{"name":"2013 IEEE International Wireless Symposium (IWS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124491639","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
Compact microstrip dual-band bandpass filter with quarter-wavelength stepped impedance resonators 紧凑的微带双带带通滤波器与四分之一波长阶跃阻抗谐振器
2013 IEEE International Wireless Symposium (IWS) Pub Date : 2013-04-14 DOI: 10.1109/IEEE-IWS.2013.6616697
Songbai Zhang, Lei Zhu
{"title":"Compact microstrip dual-band bandpass filter with quarter-wavelength stepped impedance resonators","authors":"Songbai Zhang, Lei Zhu","doi":"10.1109/IEEE-IWS.2013.6616697","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2013.6616697","url":null,"abstract":"In this paper, a compact microstrip dual-band Chebyshev bandpass filter based on λ/4 stepped impedance resonators is designed, which are serially coupled by the alternative J and K inverters. Appropriate impedances and lengths of λ/4 stepped impedance resonators are synthesized based on the values of chosen dual-band K inverter. The dual-band coupled-line is then synthesized to render required J couplings at two central frequencies. Finally, a 4th-order Chebyshev dual-band bandpass filter centering at 1.8 and 5.8 GHz with respective fractional bandwidths of 15.0% and 8.0% is designed and fabricated, and measured results show consistent match with the theoretical ones.","PeriodicalId":344851,"journal":{"name":"2013 IEEE International Wireless Symposium (IWS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128579292","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
Impacts of surface waves on performance of an EBG resonator antenna 表面波对EBG谐振器天线性能的影响
2013 IEEE International Wireless Symposium (IWS) Pub Date : 2013-04-14 DOI: 10.1109/IEEE-IWS.2013.6616799
Naizhi Wang, L. Talbi, Q. Zeng, Jiadong Xu
{"title":"Impacts of surface waves on performance of an EBG resonator antenna","authors":"Naizhi Wang, L. Talbi, Q. Zeng, Jiadong Xu","doi":"10.1109/IEEE-IWS.2013.6616799","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2013.6616799","url":null,"abstract":"This paper presents the impacts of the surface waves induced by the feeding microstrip patch antenna on the performance of EBG resonator antennas. It is found that the surface waves narrow down the radiation bandwidth, widen the half radiation beamwidth in the E-plane, leading to a considerable decrease in the directivity, which should be carefully treated and abstained in the design process.","PeriodicalId":344851,"journal":{"name":"2013 IEEE International Wireless Symposium (IWS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130092824","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
Performance analysis on wireless communication system with harmonic frequency channels concept 基于谐波信道概念的无线通信系统性能分析
2013 IEEE International Wireless Symposium (IWS) Pub Date : 2013-04-14 DOI: 10.1109/IEEE-IWS.2013.6616847
Pedro Cheong, K. Wu, D. Deslandes, K. Tam
{"title":"Performance analysis on wireless communication system with harmonic frequency channels concept","authors":"Pedro Cheong, K. Wu, D. Deslandes, K. Tam","doi":"10.1109/IEEE-IWS.2013.6616847","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2013.6616847","url":null,"abstract":"This paper presents a new concept of simultaneous data transfers with existence of multiple harmonic frequency channels. Contradictory to conventional approaches of multiband communication systems, which generate the desired operating frequencies with multiple local oscillators and communicate in time division basis, this proposed harmonic communication system reuse the intermodulation products generated by the intrinsic property of nonlinear devices, primarily the up-/down-converting mixers in the transceiver. In this case, duplicated data can be transferred through multiple frequency channels. Moreover, compact multiband components can be used to replace those single-band circuits in conventional multiband systems and therefore limiting the cost of such transceiver. In theoretical analysis, the optimal signal-to-noise ratio (SNR) performance can be enhanced by 3-dB whenever the number of frequency channels is doubled. As the consequence, the bit-error-rate (BER) performance can be improved, or in another point of view, the minimum required SNR for the receiver can be relaxed. The simulation results show good agreements with the theoretical ones and therefore demonstrate the usefulness of proposed harmonic frequency channels concept.","PeriodicalId":344851,"journal":{"name":"2013 IEEE International Wireless Symposium (IWS)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132052658","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
A phased CPW-CTS array with reconfigurable NRI phase shifter for beam steering application 一种具有可重构NRI移相器的相控CPW-CTS阵列，用于波束转向
2013 IEEE International Wireless Symposium (IWS) Pub Date : 2013-04-14 DOI: 10.1109/IEEE-IWS.2013.6616821
Yue Li, M. Iskander, Zhijun Zhang, Zhenghe Feng
{"title":"A phased CPW-CTS array with reconfigurable NRI phase shifter for beam steering application","authors":"Yue Li, M. Iskander, Zhijun Zhang, Zhenghe Feng","doi":"10.1109/IEEE-IWS.2013.6616821","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2013.6616821","url":null,"abstract":"In this paper, a reconfigurable negative reflect index (NRI) phase shifter is proposed, and adopted in a 3-element coplanar waveguide (CPW) continuous transverse stub (CTS) antenna array to achieve beam steering capability. The NRI phase shifter consists of three pin diodes, two shunt inductors and one capacitor. 3-stage phase shifters with different components' values are combined to achieve 3bit reconfigurable working states. By controlling the working states, 8 different beam steering angles can be achieved in the CPW-CTS antenna array with good impedance matching. Simulation results are shown to validate the design strategy.","PeriodicalId":344851,"journal":{"name":"2013 IEEE International Wireless Symposium (IWS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130289007","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
Compact SIW filter with asymmetric frequency response for C-band wireless applications 具有非对称频率响应的紧凑SIW滤波器，适用于c波段无线应用
2013 IEEE International Wireless Symposium (IWS) Pub Date : 2013-04-14 DOI: 10.1109/IEEE-IWS.2013.6616845
J. D. Martínez, S. Sirci, V. Boria
{"title":"Compact SIW filter with asymmetric frequency response for C-band wireless applications","authors":"J. D. Martínez, S. Sirci, V. Boria","doi":"10.1109/IEEE-IWS.2013.6616845","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2013.6616845","url":null,"abstract":"In this paper, the design of a low-loss compact filter with asymmetric response for 5.15-5.35 GHz wireless local area network (WLAN) applications is presented. The proposed filter implements a cross-coupled trisection topology that enables to conveniently add a transmission zero at the upper-side in order to reject strong interferers that could come from the close UNII-2e and UNII-3 bands (i.e. between 5.47-5.825 GHz). The filter is based on capacitively loaded circular coaxial resonators embedded into a dielectric material following a substrate integrated waveguide (SIW) approach. The designed filter shows good electromagnetic performance in terms of losses and out-of-band rejection while greatly reducing the device size.","PeriodicalId":344851,"journal":{"name":"2013 IEEE International Wireless Symposium (IWS)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121567184","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
The design and analysis on broadband circularly-polarized slot antenna 宽带圆极化缝隙天线的设计与分析
2013 IEEE International Wireless Symposium (IWS) Pub Date : 2013-04-14 DOI: 10.1109/IEEE-IWS.2013.6616763
Chenguang Li, Hanwei Wu, L. Han, Liyun Yan, Wenmei Zhang
{"title":"The design and analysis on broadband circularly-polarized slot antenna","authors":"Chenguang Li, Hanwei Wu, L. Han, Liyun Yan, Wenmei Zhang","doi":"10.1109/IEEE-IWS.2013.6616763","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2013.6616763","url":null,"abstract":"A design of a broadband circularly-polarized (CP) slot antenna is proposed in this paper. The CP radiation of the slot antenna is excited by the proximity coupling of a microstrip line. To obtain a broad CP bandwidth, three CP modes contained in the CP band are excited. The results show that the proposed antenna can provide a CP operating bandwidth of 56% (3.17 GHz-5.65 GHz) within an impedance bandwidth of 64% (2.96 GHz-5.75 GHz).","PeriodicalId":344851,"journal":{"name":"2013 IEEE International Wireless Symposium (IWS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116779165","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 configurable Compass/GPS multiband RF receiver 一个可配置的罗盘/GPS多波段射频接收机
2013 IEEE International Wireless Symposium (IWS) Pub Date : 2013-04-14 DOI: 10.1109/IEEE-IWS.2013.6616833
Zhong Zhang, Weimin Li, Wu Wen, Xunping Hou, Dianwei Zhang
{"title":"A configurable Compass/GPS multiband RF receiver","authors":"Zhong Zhang, Weimin Li, Wu Wen, Xunping Hou, Dianwei Zhang","doi":"10.1109/IEEE-IWS.2013.6616833","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2013.6616833","url":null,"abstract":"A configurable Compass/GPS multiband GNSS RF receiver with wide bandwidth in a heterodyne radio topology is implemented in a 0.35μm SiGe BiCMOS process. By programming the synthesizer to generate different local oscillator (LO) signals, the proposed receiver downconverts GNSS signals in L1/B1/B2/B3 bands to an identical intermediate frequency (IF) of 46MHz. An automatic gain control (AGC) loop is adopted to improve the noise and anti-interference performance. The receiver achieves a total noise figure of less than 3.5dB and a maximum voltage gain of 112dB with 70dB dynamic range while consuming 32mA current from a 3.3V supply, with a die area of 3.5×3.8mm2 including ESD protection pads.","PeriodicalId":344851,"journal":{"name":"2013 IEEE International Wireless Symposium (IWS)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122582373","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 new family of low correlation zone sequences in QS-CDMA communication systems QS-CDMA通信系统中一种新的低相关带序列
2013 IEEE International Wireless Symposium (IWS) Pub Date : 2013-04-14 DOI: 10.1109/IEEE-IWS.2013.6616740
Jing Jane He, Q. Zeng
{"title":"A new family of low correlation zone sequences in QS-CDMA communication systems","authors":"Jing Jane He, Q. Zeng","doi":"10.1109/IEEE-IWS.2013.6616740","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2013.6616740","url":null,"abstract":"The paper addresses the problem of constructing signature sequences for quasi-synchronous CDMA systems. We employ two ℓ - ary sequences, i.e. ℓ symbols sequences, with ideal two-level autocorrelation and a Costas or Golomn Costas sequence to construct a signal set with long Low Correlation Zone length and low maximum magnitude of correlation values. We obtain an Low Correlation Zone (Np, p, p, N) signal set and an Low Autocorrelation Zone (Np, p, p, N) signal set, where N is a positive integer and p is a prime number. We also get an LCZ (p<sup>m</sup>(p<sup>m</sup> - 1), p<sup>m</sup>, p<sup>m</sup> - 1, p<sup>m</sup>) signal set and an LACZ (p<sup>m</sup>(p<sup>m</sup> - 1), p<sup>m</sup>, p<sup>m</sup> - 1, 1) signal set, where m is a positive integer.","PeriodicalId":344851,"journal":{"name":"2013 IEEE International Wireless Symposium (IWS)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131416846","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
Dual-band bandpass filter based on stub-loaded complementary CMRC 基于存根负载互补CMRC的双带带通滤波器
2013 IEEE International Wireless Symposium (IWS) Pub Date : 2013-04-14 DOI: 10.1109/IEEE-IWS.2013.6616704
W. Qin, Q. Xue
{"title":"Dual-band bandpass filter based on stub-loaded complementary CMRC","authors":"W. Qin, Q. Xue","doi":"10.1109/IEEE-IWS.2013.6616704","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2013.6616704","url":null,"abstract":"A dual-band bandpass filter (BPF) is presented in this paper by applying the stub-loaded resonator technique to the recently-proposed quasi-lumped BPF, namely complementary CMRC (CCMRC). The CCMRC is a compact single-band BPF and consists of four resonators. Two stubs are attached at the center of the first and the fourth resonators respectively to obtain an additional passband, resulting in a dual-band filtering feature. The implemented dual-band BPF inherits advantages from the CCMRC, such as compact size, good passband performance and high selectivity skirt.","PeriodicalId":344851,"journal":{"name":"2013 IEEE International Wireless Symposium (IWS)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133566718","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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