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Inversion of Fresnel equations for the determination of effective parameters of periodic resonant and non-resonant metamaterials 周期共振和非共振超材料有效参数的菲涅耳方程反演
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852162
D. Seetharamdoo, R. Sauleau, K. Mahdjoubi, A. Tarot
{"title":"Inversion of Fresnel equations for the determination of effective parameters of periodic resonant and non-resonant metamaterials","authors":"D. Seetharamdoo, R. Sauleau, K. Mahdjoubi, A. Tarot","doi":"10.1109/ANTEM.2005.7852162","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852162","url":null,"abstract":"The aim of this paper is to study the suitability of the inversion of Fresnel's equations for the calculation of effective parameters of resonant metamaterials. The validity of thus calculated electromagnetic parameters has been discussed by many authors. The first step of our study is to ensure that there is no anomaly due to numerical ambiguities in the inversion procedure. To this end, three different algorithms will be developed. The second step is to show the suitability of these inversion procedure to analyze various periodic media. Metamaterials having different electromagnetic responses will be treated. When the structure is resonant, peculiar frequency variation of the effective parameters is observed. Finally, the Split-Ring Resonator - SRR (main constituent of negative refractive index metamaterial) will be analyzed and an analogy between the results obtained for other resonant inclusions will be made.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126285119","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
Feed location effects on miniature microstrip patch antennas bandwidth 馈电位置对微型微带贴片天线带宽的影响
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852130
Hung Tien Nguyen, S. Noghanian, L. Shafai
{"title":"Feed location effects on miniature microstrip patch antennas bandwidth","authors":"Hung Tien Nguyen, S. Noghanian, L. Shafai","doi":"10.1109/ANTEM.2005.7852130","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852130","url":null,"abstract":"This study was performed on slot loaded microstrip patch antennas. Slots reduce antenna resonant frequency and are used for antenna miniaturization. However, as the antenna size is reduced, the feeding becomes more difficult, and input impedance becomes more sensitive to the feed location. In this paper the effects of feed location on input impedance and bandwidth of two types of slot loaded patch antennas are investigated.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122918600","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
Analysis of conformal antennas in spheroidal geometries: A mapping into planar components 球面几何共形天线的分析:到平面分量的映射
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852021
A. Alú, F. Bilotti, L. Vegni
{"title":"Analysis of conformal antennas in spheroidal geometries: A mapping into planar components","authors":"A. Alú, F. Bilotti, L. Vegni","doi":"10.1109/ANTEM.2005.7852021","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852021","url":null,"abstract":"In this contribution, we apply the mapping between conformal antennas in complex geometries and planar equivalent antennas loaded with complex materials [F. Bilotti, A. Alù, L. Vegni, PIER 47, 1 (2004)] to the case of spherical and spheroidal geometries. Even though the complexity of the problem is not reduced after this rigorous mapping, a generalization of the Method of Lines (MoL) numerical algorithm can then be applied successfully. Starting from the generalized transmission-line equations that relate the transverse electromagnetic field components in a generic linear material embedded in a given orthogonal non-planar reference system, it is possible in fact to apply a 2-D discretization on the transverse plane, leading to a system of coupled differential equations for the line samples of the field. The theory and some numerical results are presented and discussed, showing the capabilities of this technique in terms of efficiency and accuracy, and underlining how a wise employment of non-conventional media may lead to interesting improvements of the radiating features of common microwave conformal antennas.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122708386","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
Dual stripline fed metal sheet monopoles for UWB terminal applications 用于超宽带终端的双带状线馈电金属片单极子
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852041
S. Bories, C. Roblin, A. Sibille
{"title":"Dual stripline fed metal sheet monopoles for UWB terminal applications","authors":"S. Bories, C. Roblin, A. Sibille","doi":"10.1109/ANTEM.2005.7852041","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852041","url":null,"abstract":"An UWB planar monopole with dual stripline fed (matched over a 3.2–9.2 GHz bandwidth) is designed for low cost applications with an achieved input bandwidth of [3.2–9.2] GHz and size of (30×31×3 mm). The main drawback of such a fully planar design is the degradation of the omni-directionality beyond the first octave. The addition of simple orthogonal elements onto the monopole offers a very simple way to significantly reduce this effect. The improvements have been evaluated with specific UWB characterization tools.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123002325","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: 10
Design of a multi-source EBG antenna for diversity of polarization 极化分集的多源EBG天线设计
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852062
M. Diblanc, M. Thevenot, T. Monediere, B. Jecko
{"title":"Design of a multi-source EBG antenna for diversity of polarization","authors":"M. Diblanc, M. Thevenot, T. Monediere, B. Jecko","doi":"10.1109/ANTEM.2005.7852062","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852062","url":null,"abstract":"It has appeared very easy to design a circularly polarized EBG antenna using a patch antenna with notches. The results meet to our wishes. The use of several feeds under the EBG material allows to radiate a left or/and a right circular polarization with the same EBG antenna.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123137447","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
Coherently Radiating Periodic Structures (CORPS): A new perspective of designing antenna arrays 相干辐射周期结构:天线阵列设计的新视角
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852092
A. Ibáñez, R. García, Diego Betancourt, C. del-Río
{"title":"Coherently Radiating Periodic Structures (CORPS): A new perspective of designing antenna arrays","authors":"A. Ibáñez, R. García, Diego Betancourt, C. del-Río","doi":"10.1109/ANTEM.2005.7852092","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852092","url":null,"abstract":"The new concept of Coherently Radiating Periodic Structures, CORPS, has been presented. In this case, it has been applied to the design of antenna arrays.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128461963","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
Astigmatic beam tracing hybridised with FDTD for on board antenna analysis 用于机载天线分析的像散波束跟踪与FDTD混合
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852063
E. Di Giampaolo, G. Marrocco, M. Sabbadini, F. Bardati
{"title":"Astigmatic beam tracing hybridised with FDTD for on board antenna analysis","authors":"E. Di Giampaolo, G. Marrocco, M. Sabbadini, F. Bardati","doi":"10.1109/ANTEM.2005.7852063","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852063","url":null,"abstract":"An hybrid FDTD-ABT scheme has been proposed for the electromagnetic field analysis of an on board antenna. The hybrid method resorts to a spherical wave expansion to link the FDTD code to the ABT code, i.e. spherical harmonics are used to provide ABT with a suitable description of the source modelled with FDTD. This approach exploits the ability of FDTD to treat detailed models of the antenna and its nearby structures while ABT is able to perform the analysis of the satellite environment.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131391954","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
Phased array developments: An overview 相控阵发展综述
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852027
L. Baggen, S. Holzwarth, M. Boettcher, M. Eube
{"title":"Phased array developments: An overview","authors":"L. Baggen, S. Holzwarth, M. Boettcher, M. Eube","doi":"10.1109/ANTEM.2005.7852027","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852027","url":null,"abstract":"This paper gives an overview of developments and projects in the area of steerable antennas (phased array) at IMST. Through the years, this type of antenna has become a key area within IMST and various projects have been conducted in the past, and are currently ongoing. Phased array antennas incorporate in general active components for beam steering, and have achieved ever more popularity during the last years, mainly driven by mobile multimedia applications. It is intended to give here an impression of the work performed, thus a global overview and not a detailed technical description. For further information it is referred to more specific publications.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123677639","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
Use of multimode resonator for the antenna-filter multifunction design 利用多模谐振器进行天线滤波器的多功能设计
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852076
B. Froppier, S. Toutain
{"title":"Use of multimode resonator for the antenna-filter multifunction design","authors":"B. Froppier, S. Toutain","doi":"10.1109/ANTEM.2005.7852076","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852076","url":null,"abstract":"We have presented the design of the antenna filter multi-function using a methodology based on a direct synthesis of the filtering functions and taking into account the electromagnetic constraints. We have showed that we could design either the radiant filter function or the filtering antenna function. From these results we have designed a structure with multi-mode cavities in order to make the filtering function the most compact as possible. We hope to present for the conference some multi-mode radiating filters measurements.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128123033","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
Reconfigurable phased-arrays based on hybrid couplers in reflection mode 反射模式下基于混合耦合器的可重构相控阵
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852071
F. Ferrero, C. Luxey, G. Jacquemod, R. Staraj, G. Kossiavas, V. Fusco
{"title":"Reconfigurable phased-arrays based on hybrid couplers in reflection mode","authors":"F. Ferrero, C. Luxey, G. Jacquemod, R. Staraj, G. Kossiavas, V. Fusco","doi":"10.1109/ANTEM.2005.7852071","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852071","url":null,"abstract":"This paper presents the design of antenna arrays of patches fed by microstrip hybrid branchline couplers in reflection mode as phase shifters. This topology permits the reduction of the number of FET, PIN diode or MEMS switches by two when compared with classic array feeding techniques. Two antenna prototypes are simulated, fabricated and measured. The results show beam steering capability over a 400 MHz band centered on 5.8 GHz with good matching performances.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121675542","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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