发布求助
文献互助 智能选刊 最新文献

2006 7th International Symposium on Antennas, Propagation & EM Theory最新文献

筛选
英文 中文
A Time-Gating-Based Method for Correcting Phase Errors Caused by Cable Flexing in Planar Near-Field Measurements 基于时间门控的平面近场测量中电缆弯曲相位误差校正方法
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353407
Wan Liang, C. Xiande, H. Guoyu, Zhang Zhuoran
{"title":"A Time-Gating-Based Method for Correcting Phase Errors Caused by Cable Flexing in Planar Near-Field Measurements","authors":"Wan Liang, C. Xiande, H. Guoyu, Zhang Zhuoran","doi":"10.1109/ISAPE.2006.353407","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353407","url":null,"abstract":"A new method based on time-gating technique for correcting phase errors caused by flexing cable is introduced, which can be used in planar near-field test systems. It was shown by simulation and experiments that this method is valid on X band and could be easily put into practice.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115818907","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
Accurate and Efficient Analysis of Aperture Coupled Cylindrically Conformal Microstrip Antennas 孔径耦合圆柱共形微带天线的精确高效分析
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353386
M. He
{"title":"Accurate and Efficient Analysis of Aperture Coupled Cylindrically Conformal Microstrip Antennas","authors":"M. He","doi":"10.1109/ISAPE.2006.353386","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353386","url":null,"abstract":"A full wave method is proposed to analyze the characteristics of the aperture coupled cylindrically conformal microstrip antennas. The near field of the antenna is obtained through conformal FDTD method in cylindrical coordinates and then the equivalence and duality theorems combined with the modified spectral domain dyadic Green's functions for cylindrically stratified media are used to calculate the radiation patterns. As well, a broadband antenna of this type with stacked structure is realized.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"AES-1 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121002399","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
Measurements of Complex Permittivity Using Dielectric Resonator at 60 GHz 60 GHz介质谐振器复介电常数的测量
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353581
Hong-xing Zheng
{"title":"Measurements of Complex Permittivity Using Dielectric Resonator at 60 GHz","authors":"Hong-xing Zheng","doi":"10.1109/ISAPE.2006.353581","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353581","url":null,"abstract":"In order to investigate the characteristic of single crystal and polycrystalline ceramics at millimeter-wave frequencies, a method for measuring low-loss dielectric materials has been developed. Using a dielectric rod resonator excited by a dielectric waveguide, effective conductivity of conducting plates for short circuiting the resonator is determined. The complex permittivity of the dielectric rod is determined by the resonant frequency and unloaded quality factor of the TE0ml-mode resonator. Then the complex permittivities of single crystal sapphire, polycrystalline ceramics, and cordierite have been obtained at 60 GHz. Finally, for all the specimens measured in this paper, the proposed method is seen to provide much better accuracy for values.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121058217","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
The conformal finite-difference time-domain analysis of the antipodal Vivaldi antenna for UWB applications 超宽带对映维瓦尔第天线的共形时域有限差分分析
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353540
E. Li, Hong-San Li, J.M. Cai
{"title":"The conformal finite-difference time-domain analysis of the antipodal Vivaldi antenna for UWB applications","authors":"E. Li, Hong-San Li, J.M. Cai","doi":"10.1109/ISAPE.2006.353540","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353540","url":null,"abstract":"The conformal finite-difference time-domain (CFDTD) method is applied to characterize the dual elliptically tapered antipodal slot antenna (DETASA) for UWB applications. DETASA antenna consists of the metallization on two sides of the substrate and presented by two polygons. The CFDTD method with uniaxial perfectly match layer is suitable to model the patch with curved surface and edges of these polygons. This paper demonstrates the capability of this simulation method for UWB antenna design. This method is examined with experimental approach.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126549141","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
An Approach Based on Normalization Processing for Two-Dimensional Subarray Level ADBF 二维子阵列级ADBF的一种归一化处理方法
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353358
Hu Hang, Deng Xin-hong
{"title":"An Approach Based on Normalization Processing for Two-Dimensional Subarray Level ADBF","authors":"Hu Hang, Deng Xin-hong","doi":"10.1109/ISAPE.2006.353358","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353358","url":null,"abstract":"Adaptive digital beamforming (ADBF) at subarray level has important applications in phased array radar systems. This paper studies two-dimensional ADBF methods at subarray level. We present the signal model of two-dimension ADBF at subarray level. Generalizing ADBF applied to one-dimension linear array to phased array at subarray level, we can obtain two-dimension ADBF at subarray level, but its limitation is that adaptive processing makes the SLL (sidelobe level) of the pattern increase remarkably. Therefore, we present two-dimensional ADBF at subarray level based on normalization. This method can obtain adaptive pattern the same as quiescent pattern for the case of absence of jammer and non-overlapped subarrays, while improve the SLL of the adaptive pattern remarkably in presence of jammers. Simulation results indicate the validity of the introduced method.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125249548","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 Approach for Ship Detection in SAR Imagery Based on Convolution between Different Polarization Channels 基于不同极化通道卷积的SAR图像舰船检测新方法
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353293
Liao Haiyan, He Yijun, Wang Wenguang
{"title":"A New Approach for Ship Detection in SAR Imagery Based on Convolution between Different Polarization Channels","authors":"Liao Haiyan, He Yijun, Wang Wenguang","doi":"10.1109/ISAPE.2006.353293","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353293","url":null,"abstract":"A new approach is proposed for ship detection with SAR (Synthetics Aperture Radar) images based on the convolution between different polarimetric channels. The method takes advantages of different statistical behaviors among ships and surrounding ocean, interpreting the information through the convolution in order to provide a more reliable detection. The simulations show that the convolution is sensitive to the size and shape of ships not to sea state. The method can be used under high sea state and have no relation to the movement of ships. Moreover, the method is general which is not only suitable for dual polarization data but also for full polarization data. The detection performance over both simulated and real images confirms the robustness of the method.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121510560","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
Presenting a Method for Wide Band Nulling by Spiral Array Antenna 提出了一种利用螺旋阵列天线进行宽带消零的方法
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353477
A. Jafargholi, M. Mousavi
{"title":"Presenting a Method for Wide Band Nulling by Spiral Array Antenna","authors":"A. Jafargholi, M. Mousavi","doi":"10.1109/ISAPE.2006.353477","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353477","url":null,"abstract":"Spiral phased array antenna nulling is presented. The array factor and classic method for spiral array antenna proposed here. Proposed method and genetic algorithm for optimization of fixed nulling in spiral array antenna are used and compared. The goal is to achieve a -20 dB in null over the wide frequency band. Our simulation shows -20 dB over 75 MHz null bandwidth, in VHF band by GA and over 90 MHz null bandwidth by proposed design method.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127559047","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
Simulating Photonic Bandgap Antennas on Silicon Substrate 在硅衬底上模拟光子带隙天线
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353391
N. Haridas, A. Erdogan, A. Walton, T. Arslan
{"title":"Simulating Photonic Bandgap Antennas on Silicon Substrate","authors":"N. Haridas, A. Erdogan, A. Walton, T. Arslan","doi":"10.1109/ISAPE.2006.353391","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353391","url":null,"abstract":"With the idea of having antennas on chip, this paper describes an implementation of a micro antenna fabricated on a silicon substrate in order to have uniformity in fabrication steps that will help bring down cost of manufacturing and efficiency of design. We have also looked into the field of photonic or electromagnetic bandgap (PBG/EBG) structures to increase the efficiency of the antenna by reducing the material loss and prevent surface waves to travel through the substrate.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127593177","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
Naturally Derived Turbulence Measurement Procedures 自然产生的湍流测量程序
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353499
Wang Li-li, Xi Xiao-li, Huang Lei
{"title":"Naturally Derived Turbulence Measurement Procedures","authors":"Wang Li-li, Xi Xiao-li, Huang Lei","doi":"10.1109/ISAPE.2006.353499","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353499","url":null,"abstract":"Atmosphere turbulence is described in terms of a general formulation that does not assume any particular form foe the turbulence structure function. Expressions are obtained for the tow-point correlation function of the complex amplitude (i.e., the atmospheric MTF) and for the more general function, the tow-point two-wavelength correlation function of the complex amplitude. A cardinal set of measurement procedures naturally derives from these two functions that enable both the integrated strength and the average structure function of the turbulence in a propagation path to be characterized. The measurement procedures are based on certain key properties of point-object images; properties that carry the essential information about the integrated effects of all mechanisms in the propagation path that affect the wavefronts. These mechanisms can include, but are not limited to, atmospheric turbulence, boundary layer turbulence, thermal blooming, telescope aberrations, and the (corrective) effects of adaptive optics. The measurement procedures enable full end-to-end characterization of the entire propagation path between object and image. They take account of amplitude scintillation as phase variation in the wavefronts. Once the entire path has been characterized, a wavelength region can be identified that leads to optimum resolution from large ground-based astronomical telescopes. For HEL system, use of optimum wavelengths leads maximum irradiance at the target and maximum target lethality range. Large performance improvements are attained by use of optimum rather than non-optimum wavelengths.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127646980","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
Radiation Pattern Synthesis for Adaptive Antenna Arrays Using Improved Quantum Genetic Algorithm 基于改进量子遗传算法的自适应天线阵辐射方向图合成
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353387
Ming Liu, Chaowei Yuan, Tian-Song Li, Hong-Hai Wu
{"title":"Radiation Pattern Synthesis for Adaptive Antenna Arrays Using Improved Quantum Genetic Algorithm","authors":"Ming Liu, Chaowei Yuan, Tian-Song Li, Hong-Hai Wu","doi":"10.1109/ISAPE.2006.353387","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353387","url":null,"abstract":"In this paper, compared with genetic algorithm (GA), an improved quantum genetic algorithm (QGA) was proposed, and it was used to calculate the complex excitations, amplitudes and phases of adaptive antenna arrays. The optimization goal is to maximize the output power of the desired signal and minimize the total output power of the interfering signals. Simulation results show that the improved QGA has better performance than existing GA.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122192006","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: 6
首页 上一页
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：481959085
Book学术官方微信