发布求助
文献互助 智能选刊 最新文献

ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004.最新文献

筛选
英文 中文
Performance analysis of a Hough-based TBD algorithm using Pade approximations 基于hough的TBD算法的Pade逼近性能分析
ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004. Pub Date : 2004-08-18 DOI: 10.1109/ICMMT.2004.1411671
Qu Chang-wen, Huang Yong, S. Feng, He You
{"title":"Performance analysis of a Hough-based TBD algorithm using Pade approximations","authors":"Qu Chang-wen, Huang Yong, S. Feng, He You","doi":"10.1109/ICMMT.2004.1411671","DOIUrl":"https://doi.org/10.1109/ICMMT.2004.1411671","url":null,"abstract":"In the background of K-clutter plus thermal noise, the performance of track-before-detect (TBD) algorithm based on Hough transform is analyzed detailed and the analytical expressions of detection probability and false-alarm probability are given. Then the Pade approximation (PA) method is used to approximately calculate these analytical expressions, which avoids complicated integral computation and conveniently finishes evaluating the detection performance. Lastly Monte Carlo simulation shows the feasibility of Pade approximations.","PeriodicalId":393410,"journal":{"name":"ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004.","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131903680","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 study of wideband single fed CP ring antenna 宽带单馈CP环形天线的研究
ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004. Pub Date : 2004-08-18 DOI: 10.1109/ICMMT.2004.1411457
D. Chang, Huan-Cheng Lien
{"title":"The study of wideband single fed CP ring antenna","authors":"D. Chang, Huan-Cheng Lien","doi":"10.1109/ICMMT.2004.1411457","DOIUrl":"https://doi.org/10.1109/ICMMT.2004.1411457","url":null,"abstract":"The bandwidth of microstrip antenna usually results in a very narrow axial ratio (AR) bandwidth (approximately 1 %). This paper described a novel single-fed ring antenna (SFRA) consists of stacked structure of an annular ring patch, which is designed for left-hand circular polarized (LHCP) at a center frequency of 2.1GHz. The impedance and 3-dB AR bandwidths are large as compared to the conventional CP microstrip antenna. The simulation results verify that the antenna has an impedance bandwidth (VSWR<2) of 36 % and 3 dB AR bandwidth 34 %.","PeriodicalId":393410,"journal":{"name":"ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004.","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115238437","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
Optimum design of inserted segment (IS) in multi-segment dielectric resonator antenna (MSDRA) 多段介质谐振器天线(MSDRA)中插入段的优化设计
ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004. Pub Date : 2004-08-18 DOI: 10.1109/ICMMT.2004.1411477
A. Rashidian, K. Forooraghi, M. Tayefeh
{"title":"Optimum design of inserted segment (IS) in multi-segment dielectric resonator antenna (MSDRA)","authors":"A. Rashidian, K. Forooraghi, M. Tayefeh","doi":"10.1109/ICMMT.2004.1411477","DOIUrl":"https://doi.org/10.1109/ICMMT.2004.1411477","url":null,"abstract":"This paper introduces a simple method for optimum design of IS in MSDRAs. It is assumed that IS acts like an impedance transformer between the feedline and the main segment. The method avoids former time-consuming trial and error for achievement of optimum dielectric constant and thickness of IS, and directly gives these parameters in which best possible bandwidth and feedline-MSDRA coupling is attained. To show the efficiency of the proposed method, many examples are examined and numerical and experimental results are presented.","PeriodicalId":393410,"journal":{"name":"ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116952159","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
Photonic bandgap properties in stratified media consisting of complex artificial dielectric 复合人工电介质层状介质中的光子带隙特性
ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004. Pub Date : 2004-08-18 DOI: 10.1109/ICMMT.2004.1411569
Zhang Yuannong, Zhao Zheng-yu, Hu Tianxi
{"title":"Photonic bandgap properties in stratified media consisting of complex artificial dielectric","authors":"Zhang Yuannong, Zhao Zheng-yu, Hu Tianxi","doi":"10.1109/ICMMT.2004.1411569","DOIUrl":"https://doi.org/10.1109/ICMMT.2004.1411569","url":null,"abstract":"Reflection and transmission coefficients in stratified chiral media are presented for EM oblique plane-wave incidence, based on the 4/spl times/4 transfer-matrix method. The photonic band gap properties of one-dimensional layered periodical structures that include of double negative material, so-called backward-wave (BW) material are investigated. The relation between photonic bandgap and chirality admittance has been analyzed. The simulation results show that the width of the PBG in the structure composed of chiral medium and BW medium is larger than that composed of chiral medium and usual medium. Our analysis has shown that the usage of the negative material makes it possible to dramatically widen the band gap of one-dimensional photonic crystal.","PeriodicalId":393410,"journal":{"name":"ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004.","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116257973","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
The marine magnetotelluric prospecting technique based on the Maxwell's theory 基于麦克斯韦理论的海洋大地电磁勘探技术
ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004. Pub Date : 2004-08-18 DOI: 10.1109/ICMMT.2004.1411539
Zhou Meijuan, Y. Xiaodong, Zhou Wenjing, Wu Zhenlu
{"title":"The marine magnetotelluric prospecting technique based on the Maxwell's theory","authors":"Zhou Meijuan, Y. Xiaodong, Zhou Wenjing, Wu Zhenlu","doi":"10.1109/ICMMT.2004.1411539","DOIUrl":"https://doi.org/10.1109/ICMMT.2004.1411539","url":null,"abstract":"Maxwell's theory laid on a solid foundation for MT detecting technique E/sub x/, E/sub y/, H/sub x/ and H/sub y/ is generally measured in the marine MT prospecting. The design consideration of the marine MT instrument includes: high sensitivity, intelligentization, synchronous acquisition, hard connection of the anchors, pressure bearing and seal, and reasonable rational sinking speed. The geophysical information of the prospected marine field could be acquired by processing the data collected by the instrument.","PeriodicalId":393410,"journal":{"name":"ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004.","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116305881","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
Distribution of the axial electric field in a helix travelling wave tube filled with plasma 充满等离子体的螺旋行波管内轴向电场的分布
ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004. Pub Date : 2004-08-18 DOI: 10.1109/ICMMT.2004.1411648
Xie Hongquan, Liu Pukun
{"title":"Distribution of the axial electric field in a helix travelling wave tube filled with plasma","authors":"Xie Hongquan, Liu Pukun","doi":"10.1109/ICMMT.2004.1411648","DOIUrl":"https://doi.org/10.1109/ICMMT.2004.1411648","url":null,"abstract":"A plasma loaded helix type slow wave structure is immersed in a strong longitudinal magnetic field. Taking into account the effect of the plasma and the dielectric, the system is separated along radial into three regions. By means of sheath model and the Maxwell's equation, the distribution of the electromagnetic field is established. Using the boundary conditions of each region, the dispersion relation of the slow wave structure is derived. The trend of change for the radial profile of the axial electric field is analyzed respectively in different plasma densities and plasma column radius by numerical computation. Some useful results are obtained on the basis of the discussion.","PeriodicalId":393410,"journal":{"name":"ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004.","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122149070","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
Codirectional coupler and power divider mixed microstrip and metamaterials with lumped-elements L-C 集总元件混合微带和超材料的共向耦合器和功率分配器
ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004. Pub Date : 2004-08-18 DOI: 10.1109/ICMMT.2004.1411524
Dongke Zhang, Yewen Zhang, Li He, Hong-qiang Li, Hong Chen
{"title":"Codirectional coupler and power divider mixed microstrip and metamaterials with lumped-elements L-C","authors":"Dongke Zhang, Yewen Zhang, Li He, Hong-qiang Li, Hong Chen","doi":"10.1109/ICMMT.2004.1411524","DOIUrl":"https://doi.org/10.1109/ICMMT.2004.1411524","url":null,"abstract":"A coupled-line backward coupler and a power divider, composed of the conventional microstrip line and the composite left-handed line with lumped-elements L-C, are presented. The coupler exhibits arbitrary coupling level and broad bandwidth. The power divider shows multi-ports, different coupling level output. The theoretical circuit-model simulated results are demonstrated by experiments. Both a 3-dB coupler and a trisecting power divider are demonstrated experimentally.","PeriodicalId":393410,"journal":{"name":"ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004.","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125943589","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
Microstrip elliptic diplexer design by elliptic LPF and CQ BPF 利用椭圆型LPF和CQ型BPF设计微带椭圆双工器
ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004. Pub Date : 2004-08-18 DOI: 10.1109/ICMMT.2004.1411548
Yuying Yang, M. Nakamura, Zhizhong Wang
{"title":"Microstrip elliptic diplexer design by elliptic LPF and CQ BPF","authors":"Yuying Yang, M. Nakamura, Zhizhong Wang","doi":"10.1109/ICMMT.2004.1411548","DOIUrl":"https://doi.org/10.1109/ICMMT.2004.1411548","url":null,"abstract":"To exploit the frequency band of 870-1200MHz as the extended upstream for CATV, extension amplifier is the main part of the system. To realize it, developing mass production suitable diplexer with very sharp skirt on both low-pass and high-pass sides is the key point microstrip diplexer is chosen to meet this challenge. Elliptic LPF by quasi-lumped components and CQ BPF by open-loop resonators are designed to get a cutoff edge with enough selectivity separately. Then diplexer is obtained by connecting the BPF to the LPF by coupled feedline with a suitable length, inside which both of BPF and LPF maintain their performances without any appreciable decrease. Both of the extension amplifier and the extension system by this diplexer are tested. Experiment results show that the developed extension amplifier is able to make use of the frequency band between 865MHz and 1155MHz to transmit 16QAM and 64QAM at 5 Msymbol/sec in high waveform quality without any noticeable effect on the conventional upstream and downstream.","PeriodicalId":393410,"journal":{"name":"ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004.","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130014013","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 resolution in microwave imaging 微波成像中分辨率的影响
ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004. Pub Date : 2004-08-18 DOI: 10.1109/ICMMT.2004.1411625
D. Chang, Hisn-Chung Lee, Yu-Hsuan Huang
{"title":"Effects of resolution in microwave imaging","authors":"D. Chang, Hisn-Chung Lee, Yu-Hsuan Huang","doi":"10.1109/ICMMT.2004.1411625","DOIUrl":"https://doi.org/10.1109/ICMMT.2004.1411625","url":null,"abstract":"The resolution is very important for radar image. Using this technology and raising the resolution of radar image can be applied in cancer survey of medical application. In general, the radar image is measured in frequency domain. But now it can be measured in time domain by impulse time domain system at Da Yeh University. The impulse time domain system can gate the desired reflection signal from the target. The multipath and noise from environment can be gated out by the hardware gating function of impulse time domain system. The results of high-resolution radar image by both impulse time domain and traditional frequency domain will be discussed in this paper.","PeriodicalId":393410,"journal":{"name":"ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004.","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132371729","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
Signal process and target identification of MMW passive detection based on wavelet transform 基于小波变换的毫米波无源检测信号处理与目标识别
ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004. Pub Date : 2004-08-18 DOI: 10.1109/ICMMT.2004.1411556
Xu Li, L. Junming, G. Wei, Zhang Zu-yin
{"title":"Signal process and target identification of MMW passive detection based on wavelet transform","authors":"Xu Li, L. Junming, G. Wei, Zhang Zu-yin","doi":"10.1109/ICMMT.2004.1411556","DOIUrl":"https://doi.org/10.1109/ICMMT.2004.1411556","url":null,"abstract":"The output signal which is generated when 8mm passive probe detects the cement road in a special working mode has been studied in this paper. Wavelet transform is used in signal process. And the possibility of its usage in target identification has been discussed.","PeriodicalId":393410,"journal":{"name":"ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004.","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132975136","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书