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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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Improving the accuracy of near-field antenna measurements using time–gating techniques 利用时间门控技术提高近场天线测量的精度
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-08-19 DOI: 10.1109/ANTEM.2010.5552388
M. Winebrand, J. Aubin
{"title":"Improving the accuracy of near-field antenna measurements using time–gating techniques","authors":"M. Winebrand, J. Aubin","doi":"10.1109/ANTEM.2010.5552388","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552388","url":null,"abstract":"This paper describes how the gated time – domain technique can be utilized to effectively reduce a number of error sources affecting the accuracy of NF antenna measurements. The necessary conditions are derived for the technique application in Planar and Spherical Near–Field measurements. The technique implementation and practical applications are discussed as well.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132840636","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
Compact double-sided printed omni-directional ultra wideband antenna 紧凑型双面印刷全向超宽带天线
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-11 DOI: 10.1109/APS.2010.5561770
M. Azer, S. Shams, A. Allam
{"title":"Compact double-sided printed omni-directional ultra wideband antenna","authors":"M. Azer, S. Shams, A. Allam","doi":"10.1109/APS.2010.5561770","DOIUrl":"https://doi.org/10.1109/APS.2010.5561770","url":null,"abstract":"The article presents a compact double-sided printed omni-directional ultra wideband antenna operating within a band from 3.2 GHz to 12.2 GHz. The proposed antenna is fabricated on FR4 dielectric substrate and experimentally investigated. There is a good agreement between the measured return loss and the simulated one. The antenna gives symmetrical omnidirectional patterns.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"18 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130444693","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
Efficient filtering of cable interaction in small antenna measurements 小天线测量中电缆相互作用的有效滤波
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552381
L. Javier, Q. Araque, G. Vecchi, L. Foged
{"title":"Efficient filtering of cable interaction in small antenna measurements","authors":"L. Javier, Q. Araque, G. Vecchi, L. Foged","doi":"10.1109/ANTEM.2010.5552381","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552381","url":null,"abstract":"This communication presents a novel technique to deal with undesired interaction of the AUT with cables and other nearby disturbances. Its key features are: i) it allows removal of the effect of disturbances on antenna pattern, ii) it requires only approximate geometrical knowledge of the AUT and disturbing objects and iii) it is a fast data post-processing step that puts no special requirements on the measurement procedure, which may be performed in the usual way (no baluns, chokes, etc.).","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"31 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":"123804499","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
Numerical homogenization of heterogeneous media using FVTD simulations 用FVTD模拟非均匀介质的数值均匀化
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552556
D. Isleifson, L. Shafai
{"title":"Numerical homogenization of heterogeneous media using FVTD simulations","authors":"D. Isleifson, L. Shafai","doi":"10.1109/ANTEM.2010.5552556","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552556","url":null,"abstract":"We present a method to calculate the effective dielectric constant of an inhomogeneous medium using the finite-volume time-domain (FVTD) method and a Monte Carlo algorithm. Results for a variety of spherical inclusion dielectrics in a free space background are calculated over a large range of volume fraction. Comparison with theoretical bounds and a dielectric mixture model showed that the method can be used for moderate to high volume fractions.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"180 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":"122592247","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
New developments in FEKO Suite 6.0 –: Aperture modeling, SPICE Sub-Circuit integration, Shielding Extensions, GPU computing FEKO Suite 6.0的新发展:光圈建模，SPICE子电路集成，屏蔽扩展，GPU计算
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552496
M. Schoeman, U. Jakobus, J. V. van Tonder, W. Burger
{"title":"New developments in FEKO Suite 6.0 –: Aperture modeling, SPICE Sub-Circuit integration, Shielding Extensions, GPU computing","authors":"M. Schoeman, U. Jakobus, J. V. van Tonder, W. Burger","doi":"10.1109/ANTEM.2010.5552496","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552496","url":null,"abstract":"This paper introduces some of the latest extensions and improvements to the field computation package FEKO: Support for aperture modeling in the planar multilayer Green's function using magnetic surface currents, the integration of SPICE subcircuits in combination with electromagnetic models, accurate shielding computations in the modeling of geometrically thin lossy layers and acceleration by GPUs. These topics are presented and discussed along with validation and application examples.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"267 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":"114369035","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
Interpolation or coupling matrices in the calibration of antenna arrays 天线阵列校准中的插值或耦合矩阵
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552549
S. Henault, Y. Antar
{"title":"Interpolation or coupling matrices in the calibration of antenna arrays","authors":"S. Henault, Y. Antar","doi":"10.1109/ANTEM.2010.5552549","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552549","url":null,"abstract":"Various approaches are available for correcting errors in antenna arrays through calibration. In this context, the concept of coupling matrices is a popular approach since it allows the prediction of the array port voltages for an arbitrary excitation and, for some array geometries, the estimation of the incident electromagnetic fields through the inversion of the matrices. Another popular approach consists in measuring the array port voltages for signals arriving from a set of incident angles, and interpolating between the data points to predict the voltages for intervening angles. Unfortunately, it is not possible to estimate the incident electromagnetic fields using this approach, but in many applications this is not required. Currently, the advantages of coupling matrices over interpolation in these applications are unclear. This paper compares the accuracy of array calibration performed using coupling matrices and interpolation in typical applications and array geometries, and determines the conditions where one approach should be preferred over the other.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"32 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":"122181327","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
Wideband characteristics of compact balanced folded dipole antenna for handsets 手机用紧凑平衡折叠偶极子天线的宽带特性
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552543
M. Hirayama, Jun Itou, H. Morishita
{"title":"Wideband characteristics of compact balanced folded dipole antenna for handsets","authors":"M. Hirayama, Jun Itou, H. Morishita","doi":"10.1109/ANTEM.2010.5552543","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552543","url":null,"abstract":"Recently the services (LTE, Bluetooth, W-LAN, WiMAX, Digital TV Reception) for the cellular phone are increasing. So the wider bandwidth antenna for handsets is required. In addition, built-in antennas become normal. In our previous paper [1] [2], in order to make a small size and lower profile antenna for handsets, the built-in folded dipole antenna (BFDA) and U-shaped folded dipole antenna (UFDA) have been introduced and analyzed. Those antennas can be built in a small volume and placed very close to the rectangular ground plane (GP), which represents a shielding plate used in the handset unit, because they have a folded structure and high radiation resistance. In a result, the relative bandwidths of BFDA and UFDA for VSWR≤2 are approximately 39.3% and 35.6%, respectively. In this paper, more compact balanced-fed folded dipole antenna (CBFDA) based on UFDA is proposed and its characteristics are analyzed.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"83 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":"132199224","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 finite ground plane and substrate permittivity on E- and H- plane Co-polarization patterns of the circular patch antenna 有限地平面和衬底介电常数对圆形贴片天线E面和H面共极化方向图的影响
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552502
S. Latif, L. Shafai
{"title":"Effects of finite ground plane and substrate permittivity on E- and H- plane Co-polarization patterns of the circular patch antenna","authors":"S. Latif, L. Shafai","doi":"10.1109/ANTEM.2010.5552502","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552502","url":null,"abstract":"The microstrip circular patch antenna is very popular for mobile and satellite communications applications [1, 2]. In order to have the mechanical strength of this patch antenna, typically a dielectric substrate material is used between the patch and the ground plane. Since the electromagnetic wave is trapped inside the dielectric material, the radiation patterns of any microstrip antenna are affected by the substrate. In this paper, the observation of obtaining nearly–equal co-polar patterns in the two principal planes from circular patch antennas is presented. Especially, with a finite ground plane, radiation patterns in two principal planes are investigated to find a range of the elevation angle for a particular substrate permittivity, in which the E- and H-plane co-polarization patterns are equal.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"13 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":"132320039","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
Effect of extending grounded substrate beyond AMC on the performance of spiral antennas 将接地基板延伸至AMC以外对螺旋天线性能的影响
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552429
A. Mehrabani, L. Shafai
{"title":"Effect of extending grounded substrate beyond AMC on the performance of spiral antennas","authors":"A. Mehrabani, L. Shafai","doi":"10.1109/ANTEM.2010.5552429","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552429","url":null,"abstract":"Development of artificial magnetic conductor (AMC) ground planes has resulted in low profile planar antennas. Essentially, AMC structures consist of a periodic array of arbitrarily shaped patches backed by a grounded dielectric slab. Among planar antennas, the spiral antenna is an excellent candidate for circular polarization applications. In [1–5], considerable efforts have been focused on decreasing the overall height of the curl and spiral antennas. Among which, a very compact and low profile spiral antenna was designed with a distance of only 0.02λο in [5], where λο is the free-space wavelength at 4.5GHz.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"24 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":"133323558","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
Ultra-miniature UHF antenna using magneto-dielectric material 采用磁介电材料的超小型超高频天线
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI: 10.1109/ANTEM.2010.5552480
J. Pintos, A. Louzir, P. Minard, J. Perraudeau, J-L. Mattei, D. Souriou, P. Quéffélec
{"title":"Ultra-miniature UHF antenna using magneto-dielectric material","authors":"J. Pintos, A. Louzir, P. Minard, J. Perraudeau, J-L. Mattei, D. Souriou, P. Quéffélec","doi":"10.1109/ANTEM.2010.5552480","DOIUrl":"https://doi.org/10.1109/ANTEM.2010.5552480","url":null,"abstract":"This paper introduces an ultra-miniature UHF antenna. The design combines different technologies to reduce the size:(meta-material inspired shape, use of a magneto-dielectric material as antenna support, use of an active component and a passive matching network for frequency tuning and impedance matching over the whole UHF band.) This antenna has been simulated and measured on nomad type terminal well suited for video applications.","PeriodicalId":161657,"journal":{"name":"2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference","volume":"7 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":"124133358","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: 21
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