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2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference最新文献

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Improvements in the performance of compact microstrip antennas using AMC ground planes 基于AMC地平面的紧凑型微带天线的性能改进
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552376
A. Foroozesh, L. Shafai
{"title":"Improvements in the performance of compact microstrip antennas using AMC ground planes","authors":"A. Foroozesh, L. Shafai","doi":"10.1109/ANTEM.2010.5552376","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552376","url":null,"abstract":"In this work, the performances of two conventional compact microstrip antennas are improved using artificial magnetic conductor (AMC) ground planes. Design procedure and simulation results have already been reported in [1]. Therefore, only measurement results are presented here. The measurement results show that the new antennas, compared to the conventional microstrip antennas, demonstrate gain and bandwidth enhancements of about 1.5 dB and 8.5%, respectively.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116148557","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
A novel orthogonal linearly polarized directional antenna for ultra wideband applications 一种新型超宽带正交线极化定向天线
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552418
A. Mohamed, L. Shafai
{"title":"A novel orthogonal linearly polarized directional antenna for ultra wideband applications","authors":"A. Mohamed, L. Shafai","doi":"10.1109/ANTEM.2010.5552418","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552418","url":null,"abstract":"In this paper, a novel ultra wideband (UWB) Vee dipole antenna with dual linear orthogonal polarization is introduced. The antenna consists of a 4-arm Vee dipole antenna with a novel arm shape fed by two coaxial cables with UWB baluns. The antenna occupies a volume of (0.44 λL × 0.44 λL × 0.44 λL) without the coaxial balun. The boresight gain of the antenna reaches 12 dB with the cross polarization level of less than 30 dB and back lobe level of about 12 dB. The effect of including ground plane and director elements on the performance of this antenna is studied. The preliminary results of this study show that this antenna can be a good candidate medical imaging and as a feed for wideband reflector antennas such as in the Square Kilometer Array (SKA) project.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123769213","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
Antenna miniaturization and nanoferrite magneto-dielectric materials 天线小型化与纳米铁氧体磁介电材料
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552533
D. Souriou, J. Mattei, S. Boucher, A. Sharaiha, A. Tarot, A. Chevalier, P. Quéffélec
{"title":"Antenna miniaturization and nanoferrite magneto-dielectric materials","authors":"D. Souriou, J. Mattei, S. Boucher, A. Sharaiha, A. Tarot, A. Chevalier, P. Quéffélec","doi":"10.1109/ANTEM.2010.5552533","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552533","url":null,"abstract":"New magneto-dielectric material with improved electromagnetic properties in UHF band is manufactured. These electromagnetic properties, in particular the low levels of losses, show that this material could be useful to the design of miniaturized antennas in the VHF-UHF (300MHz-700MHz) range of frequency. This new material has been used to load a small coplanar slot antenna. Performances of the antenna as well as the new material is presented and compared with commercial magnetodielectric materials.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127229554","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: 17
A comparison of the electromagnetic modelling of metal-loaded dielectric resonator antennas using different computational techniques 不同计算技术对载金属介质谐振器天线电磁建模的比较
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552574
J. Desjardins, D. McNamara, S. Thirakoune, A. Petosa
{"title":"A comparison of the electromagnetic modelling of metal-loaded dielectric resonator antennas using different computational techniques","authors":"J. Desjardins, D. McNamara, S. Thirakoune, A. Petosa","doi":"10.1109/ANTEM.2010.5552574","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552574","url":null,"abstract":"This paper compares the port and radiation pattern performance of a metal-loaded dielectric resonator antenna predicted using three different computational methods and obtained through measurement. Such comparisons between results acquired using different modelling techniques are possible these days due to the availability of commercial codes, and serve to provide an indication of the modelling error.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134326560","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
Radiation from a dipole antenna on a prolate spheroid made of non-isoimpedance DNG metamaterial 由非等阻抗DNG超材料制成的长形球体上偶极子天线的辐射
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552524
P. Uslenghi
{"title":"Radiation from a dipole antenna on a prolate spheroid made of non-isoimpedance DNG metamaterial","authors":"P. Uslenghi","doi":"10.1109/ANTEM.2010.5552524","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552524","url":null,"abstract":"The radiation from an electric dipole antenna located on the axis of a prolate spheroid made of DNG metamaterial is considered. An exact solution to the problem is obtained. The far field and the limiting cases of a very thin spheroid and of a sphere are discussed in detail.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131826372","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
Multi-fidelity optimization of microwave structures using low-order local Cauchy-Approximation surrogates 基于低阶局部柯西近似的微波结构多保真度优化
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552470
S. Koziel, M. Bakr
{"title":"Multi-fidelity optimization of microwave structures using low-order local Cauchy-Approximation surrogates","authors":"S. Koziel, M. Bakr","doi":"10.1109/ANTEM.2010.5552470","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552470","url":null,"abstract":"Multi-fidelity microwave design optimization using low-order Cauchy-approximation surrogate models based on coarse-discretization EM simulations is discussed. A sequence of surrogate models is set up in small hyper-cubes containing the optimization path. This allows us to substantially limit the number of training points necessary to set up the surrogates when compared to setting a single model valid for the entire search space. Standard space mapping (SM) is used as an optimization engine. Our approach allows us to perform computationally efficient optimization of microwave structures without circuit-equivalent coarse model traditionally used by SM algorithms. It is demonstrated that the proposed technique allows us to obtain satisfactory design at a computational cost of few full-wave simulations of the structure in question. Illustration examples are provided.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132846921","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
Scattering by a two-dimensional periodic array of vertical microstrip lines 垂直微带线的二维周期性阵列散射
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552564
A. Rashid, Z. Shen
{"title":"Scattering by a two-dimensional periodic array of vertical microstrip lines","authors":"A. Rashid, Z. Shen","doi":"10.1109/ANTEM.2010.5552564","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552564","url":null,"abstract":"Recently, a two-dimensional periodic array of vertically placed microstrip lines has been proposed for a number of useful applications. We analyze this array using an efficient full-wave mode-matching method. Our analysis comprises two parts. First, the propagation characteristics of the two-dimensional array are investigated by solving a unit-cell of this structure, which is subjected to a periodic phase shift. In second part, the air-to-array discontinuity is solved using Floquet modes in the air-region. Results of our full-wave analysis are in an excellent agreement with those obtained from CST Microwave Studio.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130931265","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
Modulated strip-line leaky-wave antenna using a printed grating lens and a surface-wave source 采用印刷光栅透镜和表面波源的调制带线漏波天线
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552488
S. Podilchak, L. Matekovits, A. Freundorfer, K. Esselle, Y. Antar
{"title":"Modulated strip-line leaky-wave antenna using a printed grating lens and a surface-wave source","authors":"S. Podilchak, L. Matekovits, A. Freundorfer, K. Esselle, Y. Antar","doi":"10.1109/ANTEM.2010.5552488","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552488","url":null,"abstract":"A planar antenna that utilize surface waves (SWs) for leaky wave (LW) excitation is investigated. Specifically, a surface-wave launcher (SWL) is employed to excite cylindrical SWs which are bound to a grounded dielectric slab (GDS). By the addition of a grid of width-modulated printed strips, a high impedance surface (HIS) can be realized, providing appropriate conditions for LW radiation. A planar metallic grating lens is also included in the design of the antenna to achieve in phase leakage along the aperture. Far field beam pattern results suggest one-sided beam scanning between 22 and 24 GHz with reflection losses below 10 dB and gain values of 8.7 dBi at broadside. Such a printed or planar low-cost and low-profile LWA may be advantageous for radar systems and satellite communications.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131348270","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: 11
A miniaturized UWB antenna for worldwide wireless USB 用于全球无线USB的小型化超宽带天线
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552479
M. Morsy, F. Harackiewicz
{"title":"A miniaturized UWB antenna for worldwide wireless USB","authors":"M. Morsy, F. Harackiewicz","doi":"10.1109/ANTEM.2010.5552479","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552479","url":null,"abstract":"In this paper, a miniaturized planar Ultra Wideband (UWB) antenna is presented. The proposed antenna is designed to be compliant with the new emerging worldwide UWB spectrum; this means it fits UWB regulations worldwide from the United States to Europe and Asia. An antenna system consisting of two identical proposed antennas is built. Time domain properties of the system are analyzed. The miniaturized prototype of the proposed antenna makes it easy to be mounted on the PCB of Wireless Universal Serial Bus (WUSB) dongle. A good agreement between the simulation results and the experimental results is achieved.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"485 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131374104","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
Field characterization of an air surveillance radar at near-ground locations 近地位置空中监视雷达的现场特征
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552530
K. Y. Sze, M. Keller
{"title":"Field characterization of an air surveillance radar at near-ground locations","authors":"K. Y. Sze, M. Keller","doi":"10.1109/ANTEM.2010.5552530","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552530","url":null,"abstract":"When using computational electromagnetics (CEM) for performance analysis of radar and high-gain microwave antennas, the necessary detailed specifications and computer-aided design (CAD) drawings of these systems are seldom readily available from the original equipment manufacturer (OEM). A reasonable estimate of the electromagnetic (EM) field levels radiated by these types of antennas may be computed using a simple 2D aperture model. This technique, known as the Aperture Field Method, assumes that an EM field distribution is produced on an aperture immediately in front of the radiating area of the antenna [1]. Such was the approach employed in this paper to characterize the electric field (E-field) intensity of a deployable air surveillance radar (ASR) at near-ground locations that were directly illuminated by the cosecant-squared fan beam of the radar. Of concern in this study was that the radar might cause EM interference (EMI) issues at near-ground locations within a few kilometer radius from the radar, due to its high radiated power. Hence, this study served as part of a comprehensive Radio Frequency (RF) Safety and EMI assessment of the ASR, based on guidelines for compatibility and safety standards (e.g. MIL-STD, STANAG, AECTP, Health Canada Safety Code 6, and IEC).","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130414298","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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