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2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications最新文献

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The optimization of the parabolic reflector antenna layout with genetic algorithm and geometrical theory of diffraction 利用遗传算法和衍射几何理论对抛物面反射面天线布局进行优化
2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Pub Date : 2009-12-18 DOI: 10.1109/MAPE.2009.5355769
Jinshuo Zhang, Shuguo Xie, Yan Liu
{"title":"The optimization of the parabolic reflector antenna layout with genetic algorithm and geometrical theory of diffraction","authors":"Jinshuo Zhang, Shuguo Xie, Yan Liu","doi":"10.1109/MAPE.2009.5355769","DOIUrl":"https://doi.org/10.1109/MAPE.2009.5355769","url":null,"abstract":"In this paper, the geometrical theory of diffraction is used to establish mathematical model for calculating the isolation of parabolic reflector antenna, and set up the objective function of the layout optimization. The method of genetic algorithm combining with high-frequency electromagnetic simulation to realize the optimization of antenna layout is described in detail. The results of satellite antenna layout optimization show that this method is effective in the optimal design of satellite antenna layout for the purpose of electromagnetic compatibility.","PeriodicalId":280404,"journal":{"name":"2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127254610","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
An throughput-optimized cooperative routing protocol in ad hoc network 一种自组网中吞吐量优化的协同路由协议
2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Pub Date : 2009-12-18 DOI: 10.1109/MAPE.2009.5355788
Wang Li, Liu Kai
{"title":"An throughput-optimized cooperative routing protocol in ad hoc network","authors":"Wang Li, Liu Kai","doi":"10.1109/MAPE.2009.5355788","DOIUrl":"https://doi.org/10.1109/MAPE.2009.5355788","url":null,"abstract":"A novel cooperative routing protocol, namely throughput-optimized cooperative routing (TOCR) protocol, is proposed to improve network throughput in ad hoc network. Through calculation, we can deduced that by fixed transmission power, a cooperative node can raise received signal to noise ratio (SNR) at the receiving of recipient node, and then increase the probability of successful packets reception and the link throughput. Based on the route construction of the adaptive forwarding cluster routing (AFCR) protocol, the TOCR protocol chooses the cooperative node of each link hop by hop to get the maximum link throughput and then build the cooperative link of each hop. As a result, it can improve the network throughput by increasing the throughput of each link on the route from source node to destination node. Simulation results show that compared with the AFCR protocol, the proposed protocol can obviously improve network throughput. ad hoc network","PeriodicalId":280404,"journal":{"name":"2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125348324","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
Complementary split ring resonators using equilateral triangular Koch fractal curves 利用等边三角形科赫分形曲线的互补裂环谐振器
2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Pub Date : 2009-12-18 DOI: 10.1109/MAPE.2009.5355780
H. Zeng, Guangming Wang, Jian-gang Liang, Xiangjun Gao
{"title":"Complementary split ring resonators using equilateral triangular Koch fractal curves","authors":"H. Zeng, Guangming Wang, Jian-gang Liang, Xiangjun Gao","doi":"10.1109/MAPE.2009.5355780","DOIUrl":"https://doi.org/10.1109/MAPE.2009.5355780","url":null,"abstract":"Equilateral triangular complementary split ring resonators which is substituted for the Koch-fractal curves is used to the composite right/left-handed transmission lines, and the resonant frequency is reduced by 22% and 34% respectively when 1 and 2 order Koch-fractal curves complementary split ring resonators are applied. The equivalent circuit model of the structure is presented and the electrical parameters are also extracted. It is observed that the simulation, circuit model and measurement results are consistent with each other, which demonstrates the correctness of the proposed structure.","PeriodicalId":280404,"journal":{"name":"2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126873375","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
Fast EMC analysis of electrically large structure by PO-TDIE hybrid method 基于PO-TDIE混合方法的大型电结构电磁兼容快速分析
2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Pub Date : 2009-12-18 DOI: 10.1109/MAPE.2009.5355744
Yujian Qin, Jianguo He, Ting Wang, Weixing Luo, Meng Ren
{"title":"Fast EMC analysis of electrically large structure by PO-TDIE hybrid method","authors":"Yujian Qin, Jianguo He, Ting Wang, Weixing Luo, Meng Ren","doi":"10.1109/MAPE.2009.5355744","DOIUrl":"https://doi.org/10.1109/MAPE.2009.5355744","url":null,"abstract":"A PO-TDIE hybrid method, for the fast EMC analysis of electrically large structure, is presented. The computational cost can be reduced much compared to the classical MOT solver. Numerical results illustrate the efficiency and accuracy of PO-TDIE. This method could be effectively applied in the EMC analysis.","PeriodicalId":280404,"journal":{"name":"2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126482834","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
Effects of superstrate with improved SSRRs on the radiation of microstrip antenna 改进ssrr的上覆层对微带天线辐射的影响
2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Pub Date : 2009-12-18 DOI: 10.1109/MAPE.2009.5355556
Yuchen Zhao, Guobin Wan, Huiling Zhao, W. Zheng
{"title":"Effects of superstrate with improved SSRRs on the radiation of microstrip antenna","authors":"Yuchen Zhao, Guobin Wan, Huiling Zhao, W. Zheng","doi":"10.1109/MAPE.2009.5355556","DOIUrl":"https://doi.org/10.1109/MAPE.2009.5355556","url":null,"abstract":"Both the effective permittivity and the effective permeability of a Left-Hand Medium (LHM) with four cells of Surface Split Square Ring Resonator (SSSRR), an improved LHM unit cell, is calculated by using Transmission/Reflection Method. Then metamaterial superstrates with different arrange of the SSSRR cells are deviced, and their effect on the radiation characteristics of traditional rectangle microstrip patch antenna is quantified numerically. According to the results attained, it is noted that by adding some more layers of the LHM with four SSSRRs, the gain can be further enhanced and the antenna pattern becomes more directive, while the return loss acts in an opposite way with the increase of layers.","PeriodicalId":280404,"journal":{"name":"2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127808719","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
Application of grid-cell combination in 2D-FDTD modeling of ELF propagation and Schumann resonances of the earth 网格单元组合在地球极低频传播和舒曼共振二维时域有限差分建模中的应用
2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Pub Date : 2009-12-18 DOI: 10.1109/MAPE.2009.5355815
Hangang Xia, Yi Wang, Q. Cao
{"title":"Application of grid-cell combination in 2D-FDTD modeling of ELF propagation and Schumann resonances of the earth","authors":"Hangang Xia, Yi Wang, Q. Cao","doi":"10.1109/MAPE.2009.5355815","DOIUrl":"https://doi.org/10.1109/MAPE.2009.5355815","url":null,"abstract":"In this paper, we have introduced a basic two-dimensional finite difference time-domain (2D-FDTD) method with TM and TE modes, and developed a model of antipodal extremely low frequency (ELF) wave propagation on the Schumann resonances (SR) of the earth. We have used an advanced algorithm, which is combining the grid-cells approaching to the certain pole points, and have improved the numerical stability and efficiency compared with those of the original basic algorithm.","PeriodicalId":280404,"journal":{"name":"2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128769710","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
Design of high-speed T/R module of P-band instantaneous polarization radar system p波段瞬时极化雷达系统高速收发模块设计
2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Pub Date : 2009-12-18 DOI: 10.1109/MAPE.2009.5355569
Zhonghao Lu, Gao-sheng Li, Dongming Zhou
{"title":"Design of high-speed T/R module of P-band instantaneous polarization radar system","authors":"Zhonghao Lu, Gao-sheng Li, Dongming Zhou","doi":"10.1109/MAPE.2009.5355569","DOIUrl":"https://doi.org/10.1109/MAPE.2009.5355569","url":null,"abstract":"High-speed T/R converter is developed in this paper by using the combination of the circulator, the limiter and the RF switch technology. The super low noise receiving technology is realized through reducing the transmission loss and improving the gain of LNA. Experiments have proved that the T/R Component's power tolerance in this paper is more than 100W, and that the blind distance caused by it is less than 800 meters.","PeriodicalId":280404,"journal":{"name":"2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129113963","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
The influence of Conducting Rough Surfaces on the performance of microwave coaxial filter 导电粗糙表面对微波同轴滤波器性能的影响
2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Pub Date : 2009-12-18 DOI: 10.1109/MAPE.2009.5355683
Yue-min Ning, Wanshun Jiang, Jianqin Deng
{"title":"The influence of Conducting Rough Surfaces on the performance of microwave coaxial filter","authors":"Yue-min Ning, Wanshun Jiang, Jianqin Deng","doi":"10.1109/MAPE.2009.5355683","DOIUrl":"https://doi.org/10.1109/MAPE.2009.5355683","url":null,"abstract":"Conducting Rough Surfaces (CRS) of microwave devices introduced by the manufacturing process lead to a variation in the device performance. In course of debugging microwave and millimeter wave devices, we often need to get the accurate electromagnetic models for conducting rough surfaces. In this paper, the electromagnetic characteristics of two-dimensional conducting rough surfaces are studied at microwave frequencies. Machine-fabricated rough surfaces with controlled roughness statistics were examined accurately. The reflecting energy and the absorbing energy of electromagnetic waves are dependent on the surface roughness and the working frequency. Because microwave has a short wavelength, the characteristics of the reflecting and the absorbing energy of electromagnetic waves are affected by the surface roughness strongly. In this paper, the reflecting characteristics and the absorbing characteristics of a series of nickel, aluminous and gold rough surfaces are measured using the broadband integrative vector network analyzerthe (VNA) from 3.95 GHz to 4.25 GHz. The reflecting coefficient and the absorbing characteristics of the rough surfaces are extracted by the measured data and the statistical analysis methods.","PeriodicalId":280404,"journal":{"name":"2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122229262","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
Novel broadband millimeter-wave FLAPS reflector antenna with three types elements 新型三种单元宽带毫米波FLAPS反射天线
2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Pub Date : 2009-12-18 DOI: 10.1109/MAPE.2009.5355597
Xiao-Tian Wang, ian-Zhong Xue, Pu-kun Liu
{"title":"Novel broadband millimeter-wave FLAPS reflector antenna with three types elements","authors":"Xiao-Tian Wang, ian-Zhong Xue, Pu-kun Liu","doi":"10.1109/MAPE.2009.5355597","DOIUrl":"https://doi.org/10.1109/MAPE.2009.5355597","url":null,"abstract":"A novel broadband millimeter-wave FLAPS reflector antenna with three types elements has been presented. The progressive phase shift is achieved by square-annular patches, combined patches and rectangle patches. The choice of this three types elements can make the phase shift smoother and increased up to 360°. Using this technique, a 15°-beam-steering FLAPS reflector antenna operating at 95 GHz is designed. The calculated results demonstrate the agreement of the main beam steering with the design requirement, and a 1-dB gain bandwidth close to 17% is obtained.","PeriodicalId":280404,"journal":{"name":"2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130345089","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
Design of a microwave equalizer using microstrip open-loop rectangular ring substructure 微带开环矩形环子结构微波均衡器的设计
2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Pub Date : 2009-12-18 DOI: 10.1109/MAPE.2009.5355872
Ying Zhao, Dongfang Zhou, Zhongxia Niu
{"title":"Design of a microwave equalizer using microstrip open-loop rectangular ring substructure","authors":"Ying Zhao, Dongfang Zhou, Zhongxia Niu","doi":"10.1109/MAPE.2009.5355872","DOIUrl":"https://doi.org/10.1109/MAPE.2009.5355872","url":null,"abstract":"Microstrip open-loop rectangular ring resonator is newly presented as the substructure and analyzed to be suitable for equalizer designing. A microstrip open-loop rectangular ring resonator is discussed with the coupling distance and the opening gap as the parameters. Compared with the traditional microstrip branch resonator and rectangular ring resonator, it is good to microstrip equalizer construction for its maximum miniaturization and its character of frequency adjustable, attenuation adjustable and quality factor adjustable. Four such resonators are used to design a microstrip equalizer for a traveling wave tube system to obtain a flat output practically. High frequency structure simulator (HFSS) is used to do the design. Good results are obtained when applicable computer programs are used to predict equalizer performance and determine necessary circuit element values. When it is fabricated the measured performance shows a good agreement with the simulated response.","PeriodicalId":280404,"journal":{"name":"2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130532452","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
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