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2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)最新文献

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Integration of the FDTD method into the iterative multi-region technique for scattering from multiple three dimensional objects 将时域有限差分法与多区域迭代技术相结合，求解三维多目标散射
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI) Pub Date : 2014-10-20 DOI: 10.1109/USNC-URSI-NRSM.2014.6927961
F. Kaburcuk, V. Demir, A. Elsherbeni, E. Arvas
{"title":"Integration of the FDTD method into the iterative multi-region technique for scattering from multiple three dimensional objects","authors":"F. Kaburcuk, V. Demir, A. Elsherbeni, E. Arvas","doi":"10.1109/USNC-URSI-NRSM.2014.6927961","DOIUrl":"https://doi.org/10.1109/USNC-URSI-NRSM.2014.6927961","url":null,"abstract":"The integration of the finite-difference time-domain method (FDTD) into the iterative multi-region (IMR) technique, an iterative approach used to solve large-scale electromagnetic problems, is presented in this paper. Solution of large scale problems has been one of the major challenges of computational electromagnetics. One approach to address this problem is to divide a problem space into smaller subregions and combine the solutions of subregions, after multiple interactions, to achieve the solution for the large domain. Solution of the subregions using frequency domain solvers has been the preferred approach as such solutions using time domain solvers require computationally expensive bookkeeping of time signals. In this contribution we present an algorithm that makes it feasible to use the FDTD method, a time domain numerical technique, in the IMR technique to achieve solutions at a number of pre-specified frequencies.","PeriodicalId":6663,"journal":{"name":"2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)","volume":"17 1","pages":"506-507"},"PeriodicalIF":0.0,"publicationDate":"2014-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84522531","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
Small quad-band printed antenna comprising symmetrically arranged trapezoidal elements and rectangle strip elements 包括对称排列的梯形元件和矩形条形元件的小型四波段印刷天线
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI) Pub Date : 2014-10-01 DOI: 10.1587/TRANSCOM.E97.B.2050
M. Sumi, Keizo Cho
{"title":"Small quad-band printed antenna comprising symmetrically arranged trapezoidal elements and rectangle strip elements","authors":"M. Sumi, Keizo Cho","doi":"10.1587/TRANSCOM.E97.B.2050","DOIUrl":"https://doi.org/10.1587/TRANSCOM.E97.B.2050","url":null,"abstract":"This paper proposes a new small multiband printed antenna for wireless telecommunications modules that actualizes Machine to Machine applications. We reconfigure our previous antenna to cover the 700 MHz, 800 MHz, and 900 MHz bands, and add two new elements to cover the 2 GHz band. The new antenna achieves operation in quad-bands: 700 MHz, 800 MHz, 900 MHz, and 2 GHz. Frequency characteristics are analyzed using a simulator based on the method of moments, and the validity of the numerical results is shown based on measured Voltage Standing Wave Ratio characteristics and the radiation patterns of the prototype antenna.","PeriodicalId":6663,"journal":{"name":"2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)","volume":"27 1","pages":"386-387"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80791589","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 design of a 48-way high power capacity sectorial waveguide power divider 设计了一种48路高功率容量扇形波导功率分配器
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI) Pub Date : 2014-09-22 DOI: 10.1109/APS.2014.6904652
Ru Meng, Heng Zhang, B. Muneer, Qi Zhu
{"title":"The design of a 48-way high power capacity sectorial waveguide power divider","authors":"Ru Meng, Heng Zhang, B. Muneer, Qi Zhu","doi":"10.1109/APS.2014.6904652","DOIUrl":"https://doi.org/10.1109/APS.2014.6904652","url":null,"abstract":"A 48-way high power capacity (HPC) sectorial waveguide power divider in X band is designed. The design approach and simple analysis of the power divider are discussed. The simulated results demonstrate that the maximum magnitude difference among all outputs is 0.8 dB, and the maximum phase difference is 9°. The 20 dB return loss bandwidth is 900 MHz from 8.9 GHz to 9.8 GHz. The power handling capability of the divider reaches 2.7 GW in vacuum state. The proposed power divider has the advantages of simple fabrication, low insertion-loss and high power capacity.","PeriodicalId":6663,"journal":{"name":"2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)","volume":"55 1","pages":"643-644"},"PeriodicalIF":0.0,"publicationDate":"2014-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83623987","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
A broadband printed slot antenna with wide E-plane beamwidth 具有宽e平面波束宽度的宽带印刷槽天线
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI) Pub Date : 2014-09-22 DOI: 10.1109/APS.2014.6905126
Di Yang, Xianling Liang, R. Jin, Jun-ping Geng
{"title":"A broadband printed slot antenna with wide E-plane beamwidth","authors":"Di Yang, Xianling Liang, R. Jin, Jun-ping Geng","doi":"10.1109/APS.2014.6905126","DOIUrl":"https://doi.org/10.1109/APS.2014.6905126","url":null,"abstract":"A novel coplanar waveguide fed printed rectangular slot antenna is proposed in this paper, which consists of a substrate layer of the CPW-fed rectangular slot antenna, a composite cavity, and a SMA connector with the vertical transition structure. The simulated results indicate that the antenna has the 10dB impedance bandwidth of 49%, the 3-dB beamwidth of exceeding 107° in E-plane, the gain of 6dBi, and with a compact size.","PeriodicalId":6663,"journal":{"name":"2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)","volume":"37 1","pages":"1600-1601"},"PeriodicalIF":0.0,"publicationDate":"2014-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79051537","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
Three-parameter elliptical aperture distributions for difference patterns by particle swarm optimization 基于粒子群优化的三参数椭圆孔径差分布
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI) Pub Date : 2014-09-22 DOI: 10.1109/APS.2014.6904355
A. Densmore, Y. Rahmat-Samii
{"title":"Three-parameter elliptical aperture distributions for difference patterns by particle swarm optimization","authors":"A. Densmore, Y. Rahmat-Samii","doi":"10.1109/APS.2014.6904355","DOIUrl":"https://doi.org/10.1109/APS.2014.6904355","url":null,"abstract":"The three-parameter (3P) elliptical aperture distribution, which as previously published had been limited to sum patterns, is complemented with a variation that applies to difference patterns. The parameter values are determined by particle swarm optimization (PSO) to meet particular system modeling performance requirements. The new distribution is suitable for system modeling of tracking antenna applications and can maximize relative angle sensitivity while minimizing clutter from sidelobes. The equations for relative angle sensitivity for the difference pattern are presented. A multi-objective PSO example is presented, optimizing the tradeoff between peak sidelobe level and relative angle sensitivity.","PeriodicalId":6663,"journal":{"name":"2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)","volume":"514 1","pages":"47-48"},"PeriodicalIF":0.0,"publicationDate":"2014-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77082718","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
Passive, on chip and in situ detection of neuropotentials 被动，芯片和原位检测神经电位
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI) Pub Date : 2014-09-22 DOI: 10.1109/APS.2014.6905288
A. Kiourti, C. Lee, A. Akhiyat, J. Volakis, H. Schwerdt, J. Chae
{"title":"Passive, on chip and in situ detection of neuropotentials","authors":"A. Kiourti, C. Lee, A. Akhiyat, J. Volakis, H. Schwerdt, J. Chae","doi":"10.1109/APS.2014.6905288","DOIUrl":"https://doi.org/10.1109/APS.2014.6905288","url":null,"abstract":"A fully-passive, on chip wireless system is proposed for in situ detection of neuropotentials. The system aims to replace conventional wired brain-sensing technologies, thus enhancing patient mobility and preserving safety. It consists of an implanted neurosensor that comprises an implanted antenna and mixer, and an exterior RF interrogator. Link budget issues are discussed, highlighting the challenges of detecting human brain neuropotentials as small as 10s of μVpp.","PeriodicalId":6663,"journal":{"name":"2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)","volume":"96 1","pages":"1923-1923"},"PeriodicalIF":0.0,"publicationDate":"2014-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84760715","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
Software enabled cognitive radio antenna system 软件支持的认知无线电天线系统
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI) Pub Date : 2014-07-06 DOI: 10.1109/APS.2014.6904932
J. Costantine, Y. Tawk, F. Ayoub, C. Christodoulou
{"title":"Software enabled cognitive radio antenna system","authors":"J. Costantine, Y. Tawk, F. Ayoub, C. Christodoulou","doi":"10.1109/APS.2014.6904932","DOIUrl":"https://doi.org/10.1109/APS.2014.6904932","url":null,"abstract":"In this paper we discuss an antenna system composed of a reconfigurable communicating antenna and a wideband antenna for sensing purposes. The communicating antenna is a microstrip antenna that is reconfigured by moving its ground plane in a vertical or tilting manner. The sensing antenna is a printed monopole antenna designed for wideband sensing. The whole system is compactly packed and software controlled by an Arduino Uno microcontroller.","PeriodicalId":6663,"journal":{"name":"2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)","volume":"16 1","pages":"1210-1211"},"PeriodicalIF":0.0,"publicationDate":"2014-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73741361","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
Enhancing the directivity of a short-length horn by an EBG cavity 利用EBG腔增强短角的指向性
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI) Pub Date : 2014-07-06 DOI: 10.1109/APS.2014.6905214
S. Ceccuzzi, C. Ponti, G. Schettini
{"title":"Enhancing the directivity of a short-length horn by an EBG cavity","authors":"S. Ceccuzzi, C. Ponti, G. Schettini","doi":"10.1109/APS.2014.6905214","DOIUrl":"https://doi.org/10.1109/APS.2014.6905214","url":null,"abstract":"In the millimeter frequency range, horn antennas are widespread components in high-directivity applications, but with the drawback of being heavy and bulky. To limit size and weight of such antennas, a lower gain must be accepted, as the radiative properties are dependent on the aperture extension and on the length. A cavity made from an Electromagnetic Band-Gap material can be successfully employed to overcome these limitations, when used as a superstrate of a shorter horn antenna. The new radiator has a wider extension but it is more suitable for low-profile applications.","PeriodicalId":6663,"journal":{"name":"2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)","volume":"62 1","pages":"1776-1777"},"PeriodicalIF":0.0,"publicationDate":"2014-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75626543","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
Small antenna design using surrogate-based optimization 基于代理优化的小型天线设计
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI) Pub Date : 2014-07-06 DOI: 10.1109/APS.2014.6904623
S. Koziel, A. Bekasiewicz
{"title":"Small antenna design using surrogate-based optimization","authors":"S. Koziel, A. Bekasiewicz","doi":"10.1109/APS.2014.6904623","DOIUrl":"https://doi.org/10.1109/APS.2014.6904623","url":null,"abstract":"In this work, design of small antennas using efficient numerical optimization is investigated. We exploit variable-fidelity electromagnetic (EM) simulations and the adaptively adjusted design specifications (AADS) technique. Combination of these methods allows us to simultaneously adjust multiple geometry parameters of the antenna structure of interest in a computationally feasible manner, leading to substantial reduction of the antenna size while maintaining acceptable reflection level. Our approach is demonstrated using a UWB monopole.","PeriodicalId":6663,"journal":{"name":"2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)","volume":"21 1","pages":"585-586"},"PeriodicalIF":0.0,"publicationDate":"2014-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75661790","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
Polarimetric Doppler spectra of S-band inland reservoir clutter s波段内陆储层杂波的极化多普勒谱
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI) Pub Date : 2014-07-06 DOI: 10.1109/APS.2014.6905131
James Park, K. Ding, Zachariah Fuchs, Kristopher T. Kim, S. Mudaliar, W. G. Stevens, P. Tzanos
{"title":"Polarimetric Doppler spectra of S-band inland reservoir clutter","authors":"James Park, K. Ding, Zachariah Fuchs, Kristopher T. Kim, S. Mudaliar, W. G. Stevens, P. Tzanos","doi":"10.1109/APS.2014.6905131","DOIUrl":"https://doi.org/10.1109/APS.2014.6905131","url":null,"abstract":"The results presented have shown that the polarization and radar geometry can significantly influence the Doppler spectra of inland reservoir surface clutter. The impact of polarization on the Doppler spectral width is analyzed by the decorrelation time from the autocorrelation function. In addition, the measured Doppler frequency shift induced by the motion of the reservoir surface depends on wind direction and measurement geometry. The extracted Doppler information is consistent with other measurements and theory.","PeriodicalId":6663,"journal":{"name":"2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)","volume":"123 1","pages":"1610-1611"},"PeriodicalIF":0.0,"publicationDate":"2014-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75673340","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
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