发布求助
文献互助 智能选刊 最新文献

2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)最新文献

筛选
英文 中文
Comprehensive analysis on cross-bowtie element for designing wideband CP Ka-Band reflectarcay 设计宽带CP ka波段反射器的交叉领结单元综合分析
2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2016-07-10 DOI: 10.1109/ANTEM.2016.7550216
Muhammad M. Tahseen, A. Dadgarpour, A. Kishk
{"title":"Comprehensive analysis on cross-bowtie element for designing wideband CP Ka-Band reflectarcay","authors":"Muhammad M. Tahseen, A. Dadgarpour, A. Kishk","doi":"10.1109/ANTEM.2016.7550216","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550216","url":null,"abstract":"A comprehensive study on the cross-bowtie element has been made in this paper, for designing wideband circularly polarized (CP) reflectarray (RA) in the Ka-Band. Several parameters have been investigated on the element e.g. slant angle, oblique incidence, dielectric permittivity, and the bandwidth analysis. A λ/4 unit cell size has been used for the analysis. Smaller element will generate less phase errors at the RA surface and provides better antenna performance in terms of bandwidth and aperture efficiency. The element rotation technique has been used to obtain the phase characteristics of the unit cell. The cross bowtie element provides more than 30 % bandwidth, and low reflected wave amplitude losses. The element performance guarantees in resulting wider RA bandwidth and higher aperture efficiency, when used in Ka-Band RA design as an element.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127717603","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
Observations on the realisation & performance of low profile planar holographic antennas 低轮廓平面全息天线的实现与性能观察
2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2016-07-10 DOI: 10.1109/ANTEM.2016.7550183
E'qab Almajali, Aldo Petosa, Derek A. McNamara, Jim S. Wight
{"title":"Observations on the realisation & performance of low profile planar holographic antennas","authors":"E'qab Almajali, Aldo Petosa, Derek A. McNamara, Jim S. Wight","doi":"10.1109/ANTEM.2016.7550183","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550183","url":null,"abstract":"New observations related to the use of a dielectric substrate and an actual feed, in obtaining the interference pattern used in the synthesis of planar holographic antennas, are provided. It is demonstrated that the inclusion of the dielectric substrate, and actual feed effects, in holographic antenna realization, improves the antenna performance.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"35 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114126239","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
Interplay between iteration step size and spatial filtering in microwave tomography 微波层析成像中迭代步长与空间滤波的相互作用
2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2016-07-10 DOI: 10.1109/ANTEM.2016.7550231
S. Geimer, K. Paulsen, P. Meaney, Sebastian Richter
{"title":"Interplay between iteration step size and spatial filtering in microwave tomography","authors":"S. Geimer, K. Paulsen, P. Meaney, Sebastian Richter","doi":"10.1109/ANTEM.2016.7550231","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550231","url":null,"abstract":"We have performed an analysis of the impact of iteration step size with respect to our spatial filtering approach in the context of microwave tomography. While reducing the step size intuitively reduces the convergence rate of the iterative reconstruction process, it has been shown to produce considerable benefits with respect to overall image stability. Especially with regards our Gauss-Newton approach that incorporates a log transformation of the minimization criterion, reducing the step size can be essential in maintaining proper phase unwrapping in more challenging imaging cases. Our early results demonstrate that the step size can be reduced considerably while still achieving relatively rapid convergence and maintaining good stability even under challenging reconstruction problem cases. However, the interplay between the spatial filtering process and our relatively new two-step reconstruction process is less obvious. In this paper we discuss the challenges and opportunities with respect to optimizing these parameters.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133090927","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
Flexible printed square loop antennas for wearable applications 可穿戴应用的柔性印刷方形环形天线
2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2016-07-10 DOI: 10.1109/ANTEM.2016.7550212
Haitham Abu Damis, R. Mirzavand, Hyun‐Joong Chung, P. Mousavi
{"title":"Flexible printed square loop antennas for wearable applications","authors":"Haitham Abu Damis, R. Mirzavand, Hyun‐Joong Chung, P. Mousavi","doi":"10.1109/ANTEM.2016.7550212","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550212","url":null,"abstract":"Two square-loop antennas for wearable applications in the 2.45 GHz (ISM) region are presented and compared. Both antennas were simulated, and then printed on flexible DuPont Kapton sheets for measurements. The standard square-loop antenna was modified by adding four circular patches to its sides in an effort to enhance performance. The new antenna is called the Quadruple Loop (QL) antenna. Simulations and measurement results show that the QL antenna demonstrated robust operation over a wider impedance bandwidth compared to that of the standard square loop antenna.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130141906","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: 7
On the potential of using multimode reflectarray feeding horn antennas 多模反射馈电喇叭天线的应用前景
2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2016-07-10 DOI: 10.1109/ANTEM.2016.7550107
M. A. Moharram, A. Kishk
{"title":"On the potential of using multimode reflectarray feeding horn antennas","authors":"M. A. Moharram, A. Kishk","doi":"10.1109/ANTEM.2016.7550107","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550107","url":null,"abstract":"A new design for a reflectarray offset feed antenna is presented to cover the ka band satellite communications uplink (27.5-31 GHz). The design exploits a multimode feed horn antenna combined with a coaxial cavity to produce the required mixture of modes. The main benefit of such a feed antenna configuration is the low cross polarization and sidelobe level as an offset feed antenna. The antenna design details are presented and the radiation pattern characteristics are compared to a conical horn antenna with the same aperture size. The maximum aperture efficiency of the proposed design is compared to the multimode open ended waveguide design as well as the conical horn using different analysis methods proving at least 3% higher aperture efficiency.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122970812","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
Diversity optimization by axial rotation of helical antennas in a MIMO system MIMO系统中螺旋天线轴向旋转的分集优化
2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2016-07-10 DOI: 10.1109/ANTEM.2016.7550102
H. Aumann
{"title":"Diversity optimization by axial rotation of helical antennas in a MIMO system","authors":"H. Aumann","doi":"10.1109/ANTEM.2016.7550102","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550102","url":null,"abstract":"This paper describes a technique for optimizing the diversity of two same-sense, axial-mode helical antennas in a MIMO system. It is shown that for a fixed spatial separation, a mechanical rotation of one of the helical antennas about its longitudinal axis will always minimize the envelope correlation coefficient. The mutual coupling between the antennas can be reduced at the same time. The technique is verified by simulations and s-parameter measurements on 5.8 GHz helical antennas.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124407405","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
Design of UWB chipless RFID tags using 8-bit open circuit stub resonators 采用8位开路存根谐振器的超宽带无芯片RFID标签设计
2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2016-07-10 DOI: 10.1109/ANTEM.2016.7550145
O. Haraz, M. Ashraf, S. Alshebili, Mohammed Alshareef, H. Behairy
{"title":"Design of UWB chipless RFID tags using 8-bit open circuit stub resonators","authors":"O. Haraz, M. Ashraf, S. Alshebili, Mohammed Alshareef, H. Behairy","doi":"10.1109/ANTEM.2016.7550145","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550145","url":null,"abstract":"This article proposes the design of a chipless ultra-wideband (UWB) radiofrequency identification (RFID) tag. The proposed structure consists of two modified circular disc monopole antennas and eight-bit open circuit (OC) stub resonators. This tag can be used to encode the incident signals in the frequency range 4-8 GHz. The proposed RFID tag elements are characterized using a full wave simulation program. Complete RFID system is modeled and time domain characteristics of the pulse received at the receiver's antenna is studied.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117149670","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
Flexible exponential weighting function toward side lobe suppression in antenna arrays 天线阵列侧瓣抑制的柔性指数加权函数
2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2016-07-10 DOI: 10.1109/ANTEM.2016.7550221
S. A. Aghdam, J. Bagby, Raul J. Pia
{"title":"Flexible exponential weighting function toward side lobe suppression in antenna arrays","authors":"S. A. Aghdam, J. Bagby, Raul J. Pia","doi":"10.1109/ANTEM.2016.7550221","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550221","url":null,"abstract":"In this paper a different class of flexible exponential weighting functions is proposed based on minimizing the sidelobes by definition of a nonconvex problem. The proposed weighting function is fixed by similar way as the Kaiser weighting function, nevertheless it has a lower sidelobe and other sidelobes have equiripple form by determined level. Undesired sidelobes suppression (SLS) by introducing a parameter for increasing free degree. The optimized suppressed sidelobes will be compered by equal mainlobes. Then, a rectangular antenna array is designed for experimental verification. Simulation results besides the experimental tests show that the proposed weighting function performs better SLS than the proposed weighting function for the equal weighting function normalized mainlobe width and length.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115532751","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
Optimizing microwave-radar imaging parameters 优化微波雷达成像参数
2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2016-07-10 DOI: 10.1109/ANTEM.2016.7550177
B. R. Lavoie, M. Okoniewski, E. Fear
{"title":"Optimizing microwave-radar imaging parameters","authors":"B. R. Lavoie, M. Okoniewski, E. Fear","doi":"10.1109/ANTEM.2016.7550177","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550177","url":null,"abstract":"We outline a method for simultaneous optimization of multiple imaging parameters for microwave-radar imaging. Arguably, the most important parameter to determine is the effective permittivity to use for image reconstruction. The accuracy and reliability of the final image depends strongly on the ability to accurately estimate the effective permittivity. We demonstrate that our method is capable of estimating the correct effective permittivity, thereby reconstructing reliable images, by applying it to data collected with the Tissue Sensing Adaptive Radar system being developed at the University of Calgary.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115575089","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
Designing a stacked three-element parasitic superdirective antenna 设计一种叠置三元寄生超指令天线
2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2016-07-10 DOI: 10.1109/ANTEM.2016.7550103
A. Haskou, A. Sharaiha, S. Collardey
{"title":"Designing a stacked three-element parasitic superdirective antenna","authors":"A. Haskou, A. Sharaiha, S. Collardey","doi":"10.1109/ANTEM.2016.7550103","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550103","url":null,"abstract":"In this paper we investigate designing a stacked three-element antenna arrays for UHF band. The array is based on miniaturized printed half-loop antenna integrated in a PCB of 8 × 8cm2. To study the inter-element distance effect on the antenna performance (directivity, input impedance and radiation efficiency), a parametric analysis is performed. The obtained results show that for small distances high directivities can be achieved in the case of the fully driven element. However, to transform this array to a parasitic (loaded) one, negative resistances are required and neglecting these resistances significantly decrease the antenna directivity. The results are validated via measurements.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115602638","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
首页 上一页 下一页 尾页
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：604180095
Book学术官方微信