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2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting最新文献

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Parametric study of EBG bandwidth for grounded square patch arrays by dispersion analysis 基于色散分析的接地方形贴片阵列EBG带宽参数化研究
2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI: 10.1109/ANTEMURSI.2009.4805095
M. Kehn, L. Shafai, A. Foroozesh
{"title":"Parametric study of EBG bandwidth for grounded square patch arrays by dispersion analysis","authors":"M. Kehn, L. Shafai, A. Foroozesh","doi":"10.1109/ANTEMURSI.2009.4805095","DOIUrl":"https://doi.org/10.1109/ANTEMURSI.2009.4805095","url":null,"abstract":"This paper performs a parametric investigation into a couple of factors that influence the bandgap properties of electromagnetic bandgap (EBG) structures. The most common and easily fabricated grounded square-patch array is showcased here, and the two parameters investigated are the patch size relative to the unit cell and the dielectric slab thickness. It will be shown how a numerical search using just these two parameters along with a simple optimization procedure is able to rapidly arrive at a very wide EBG bandwidth of around 30%. Dispersion analyses of the patch array are entailed in conducting the studies. The concepts for the generation of the dispersion diagrams are also presented.","PeriodicalId":190053,"journal":{"name":"2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127524048","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
Full-wave Quasi-TEM characteristic impedance of an imperfectly-conducting strip transmission line 非完全导电带状传输线的全波准瞬变电磁法特性阻抗
2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI: 10.1109/ANTEMURSI.2009.4805072
M. Havrilla
{"title":"Full-wave Quasi-TEM characteristic impedance of an imperfectly-conducting strip transmission line","authors":"M. Havrilla","doi":"10.1109/ANTEMURSI.2009.4805072","DOIUrl":"https://doi.org/10.1109/ANTEMURSI.2009.4805072","url":null,"abstract":"The quasi-TEM characteristic impedance of an imperfectly-conducting strip transmission line based on a full-wave analysis is investigated. The effect of the imperfect outer conductors of the stripline are accommodated via a dyadic Green's function satisfying surface impedance boundary conditions. The imperfect center conductor is accommodated through the use of a resistive sheet boundary condition and leads to an EFIE formulation for the quasi-TEM strip current. This center strip current subsequently allows computation of the quasi-TEM characteristic impedance. The effect that finite conductivity has on the quasi-TEM characteristic impedance is investigated. The importance of these results for use in future applications is discussed.","PeriodicalId":190053,"journal":{"name":"2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133014409","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
On the use & application of precursor waveforms
2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI: 10.1109/ANTEMURSI.2009.4805097
K. Oughstun
{"title":"On the use & application of precursor waveforms","authors":"K. Oughstun","doi":"10.1109/ANTEMURSI.2009.4805097","DOIUrl":"https://doi.org/10.1109/ANTEMURSI.2009.4805097","url":null,"abstract":"The use and application of precursor waveforms in dispersive attenuative media is presented, with particular attention given to ultrawideband (UWB) and impulse radar.","PeriodicalId":190053,"journal":{"name":"2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130804822","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
The wilkinson microwave anisotropy probe (WMAP): Using precision microwave measurements to study cosmology 威尔金森微波各向异性探测器(WMAP):利用精密微波测量研究宇宙学
2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI: 10.1109/ANTEMURSI.2009.4805075
N. Jarosik
{"title":"The wilkinson microwave anisotropy probe (WMAP): Using precision microwave measurements to study cosmology","authors":"N. Jarosik","doi":"10.1109/ANTEMURSI.2009.4805075","DOIUrl":"https://doi.org/10.1109/ANTEMURSI.2009.4805075","url":null,"abstract":"It is possible to measure properties of the early universe by making precise measurements of the intensity of the microwave radiation observable today over the entire sky. These measurements guide and constrain cosmological models of the early universe. This paper briefly describes the origins of this radiation, the technologies used to perform the measurement, and some of the results that have been obtained.","PeriodicalId":190053,"journal":{"name":"2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123091196","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
Phantoms for testing radar-based microwave breast imaging 用于测试基于雷达的微波乳房成像的模型
2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI: 10.1109/ANTEMURSI.2009.4805059
J. Croteau, J. Sill, T. Williams, E. Fear
{"title":"Phantoms for testing radar-based microwave breast imaging","authors":"J. Croteau, J. Sill, T. Williams, E. Fear","doi":"10.1109/ANTEMURSI.2009.4805059","DOIUrl":"https://doi.org/10.1109/ANTEMURSI.2009.4805059","url":null,"abstract":"In order to test and improve radar-based microwave imaging systems, realistic breast phantoms have been developed. Eight hemispherical and four realistic breast models were created utilizing tissue-mimicking materials introduced in [1]. Implementing a stepwise procedure and creating various molds allowed phantoms with skin, gland, fat and tumour materials to be constructed and imaged.","PeriodicalId":190053,"journal":{"name":"2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123186690","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: 22
An Efficient cascaded filter form of a 3D-FDTD TF/SF and a Mixed FFT/circulation convolution 三维时域有限差分TF/SF和混合FFT/循环卷积的有效级联滤波器形式
2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI: 10.1109/ANTEMURSI.2009.4805119
T. Tan, M. Potter
{"title":"An Efficient cascaded filter form of a 3D-FDTD TF/SF and a Mixed FFT/circulation convolution","authors":"T. Tan, M. Potter","doi":"10.1109/ANTEMURSI.2009.4805119","DOIUrl":"https://doi.org/10.1109/ANTEMURSI.2009.4805119","url":null,"abstract":"In this paper we will propose an efficient 3D Total-Field Scattered-Field (TF/SF) to resolve the memory storage issue facing the existing AFP (Analytic Field Propagator) methodology. We solve this challenge by first proposing an optimized AFP grid derivable from the rational angle propagations. This optimized grid, in turns, allows us to construct an efficiently FFT to circular convolution conversion using a cascaded filter formation, hence reducing the memory storage without seriously damaging the computational complexity. We also introduce complex projection angles and avoid computing both ***E and ***H in frequency to show that the incident field appearing at the SF region can be suppressed by −300 dB.","PeriodicalId":190053,"journal":{"name":"2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125403326","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
Arrays of 4 circularly polarised aperture-coupled-fed stacked patch antennas for GPS interference mitigation 用于GPS干扰抑制的4个圆极化孔耦合馈电堆叠贴片天线阵列
2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI: 10.1109/ANTEMURSI.2009.4805058
M. Clénet, Denis Roy, David Lee
{"title":"Arrays of 4 circularly polarised aperture-coupled-fed stacked patch antennas for GPS interference mitigation","authors":"M. Clénet, Denis Roy, David Lee","doi":"10.1109/ANTEMURSI.2009.4805058","DOIUrl":"https://doi.org/10.1109/ANTEMURSI.2009.4805058","url":null,"abstract":"This paper presents an array antenna composed of 4 identical circularly polarised aperture-coupled-fed stacked patches for mitigation of GPS interference. The individual radiating elements have been designed to cover the three GPS frequency bands L1, L2 and L5, with a good polarisation ratio over the top hemisphere. Two array topologies are considered. The characteristics of the arrays are presented in terms of return loss, mutual coupling, gain and axial ratio. Radiation patterns synthesized for a boresight beam and, as rejection is of interest, for a boresight null, are provided and analyzed. The results give insights on the capability of the array for GPS interference mitigation.","PeriodicalId":190053,"journal":{"name":"2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128858391","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
Parametric study of Vivaldi antenna 维瓦尔第天线的参数化研究
2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI: 10.1109/ANTEMURSI.2009.4805083
K. Kota, L. Shafai
{"title":"Parametric study of Vivaldi antenna","authors":"K. Kota, L. Shafai","doi":"10.1109/ANTEMURSI.2009.4805083","DOIUrl":"https://doi.org/10.1109/ANTEMURSI.2009.4805083","url":null,"abstract":"A parametric study of a wide-band Vivaldi antenna is presented. Four models were simulated using a finite element method design and analysis package Ansoft HFSS v 10.1. The simulated return loss and realized gain of each model for a frequency range of 12 to 20GHz is studied. The location of the phase centre, represented as the distance d (in cm) from the bottom of the antenna, with respect to which the phase of the respective far field copolar patterns (for a scan angle θ of 0 to 60°) in the E and H-planes, constrains to a specified maximum tolerable phase difference Δφ is calculated.","PeriodicalId":190053,"journal":{"name":"2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121917829","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
Gravitational science with pulsars and the Square Kilometre Array 引力科学与脉冲星和平方公里阵列
2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI: 10.1109/ANTEMURSI.2009.4805115
I. Stairs, M. Kramer, D. Backer, M. Bailes, J. M. Cordesk, S. Johnston, V. Kaspi, T. Lazio, S. Ransom, B. Stappers
{"title":"Gravitational science with pulsars and the Square Kilometre Array","authors":"I. Stairs, M. Kramer, D. Backer, M. Bailes, J. M. Cordesk, S. Johnston, V. Kaspi, T. Lazio, S. Ransom, B. Stappers","doi":"10.1109/ANTEMURSI.2009.4805115","DOIUrl":"https://doi.org/10.1109/ANTEMURSI.2009.4805115","url":null,"abstract":"Pulsar observations form one of the Key Science Projects for the Square Kilometre Array. These will allow unique tests of General Relativity based on finding and timing pulsars in relativistic binaries and on timing millisecond pulsars distributed across the sky in an effort to detect a background of gravitational radiation.","PeriodicalId":190053,"journal":{"name":"2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting","volume":"89 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120909944","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
Modeling, simulation, design and fabrication of a high-gain cavity resonance antenna having a highly-reflective patch-type FSS superstrate 具有高反射贴片型FSS衬底的高增益腔谐振天线的建模、仿真、设计和制造
2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI: 10.1109/ANTEMURSI.2009.4805066
A. Foroozesh, L. Shafai
{"title":"Modeling, simulation, design and fabrication of a high-gain cavity resonance antenna having a highly-reflective patch-type FSS superstrate","authors":"A. Foroozesh, L. Shafai","doi":"10.1109/ANTEMURSI.2009.4805066","DOIUrl":"https://doi.org/10.1109/ANTEMURSI.2009.4805066","url":null,"abstract":"This paper presents a practical design of a high-gain cavity resonance antenna having highly reflective superstrate surface. To this end, the antenna is modeled using the transverse equivalent network (TEN) method, first. Peak directivity of 21.7 dBi at boresight is achieved in this modeling. Next, a full-wave analyzer software package based on moment method (Ansoft Designer v4.0) is employed to analyze the antenna structure. Peak directivity of 21.87 dBi at boresight is obtained using this analysis. Then, the actual antenna is fabricated and tested. Peak gain of 19.8 dBi at boresight is obtained in experimental measurements. The sources of discrepancies between these results are pointed out.","PeriodicalId":190053,"journal":{"name":"2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125293700","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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