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11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]最新文献

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Uncertainty assessment of radiation efficiency measurements in reverberation chambers 混响室辐射效率测量的不确定度评定
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-15 DOI: 10.1109/ANTEM.2005.7852037
P. Besnier
{"title":"Uncertainty assessment of radiation efficiency measurements in reverberation chambers","authors":"P. Besnier","doi":"10.1109/ANTEM.2005.7852037","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852037","url":null,"abstract":"This paper deals with the ability of reverberation chambers to perform radiation efficiency measurements of antennas. Reverberation chambers are convenient platforms to test various shapes and sizes of antennas and are operated over large frequency bandwidths. Various method of measurements are possible including different stirring techniques, but uncertainty must be correctly determined. To do so, we propose a procedure that uses the stochastic nature of the fields. In case of a well-operating reverberation chamber, the measurement error distribution is predicted by the stochastic nature of the fields.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116899233","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
Dielectric resonator antenna with dual linear polarisation and orthogonal excitation 双线性极化正交激励的介质谐振器天线
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-15 DOI: 10.1109/ANTEM.2005.7852109
G. Lathière, R. Gillard, H. Legay
{"title":"Dielectric resonator antenna with dual linear polarisation and orthogonal excitation","authors":"G. Lathière, R. Gillard, H. Legay","doi":"10.1109/ANTEM.2005.7852109","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852109","url":null,"abstract":"This paper presents a novel structure with dual polarisation and orthogonal feeding. The radiating element is a dielectric resonator antenna (DRA). It constitutes a very compact source suitable for active arrays. The simulated results are presented at 4.5 GHz. At that step, a large bandwidth, a low cross-polarisation and a high isolation between polarisations are demonstrated.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114063164","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
Split Ring Resonators and Slot Split Ring Resonators: Influence on microstrip line transmission and possible applications 分环谐振器和槽分环谐振器:对微带线传输的影响和可能的应用
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852042
S. Burokur, M. Latrach, S. Toutain
{"title":"Split Ring Resonators and Slot Split Ring Resonators: Influence on microstrip line transmission and possible applications","authors":"S. Burokur, M. Latrach, S. Toutain","doi":"10.1109/ANTEM.2005.7852042","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852042","url":null,"abstract":"The study that is done in this paper compares the physical phenomena observed when placing a 50Ω microstrip line on respectively a periodic lattice of SRRs and a SSRRs defected ground plane. In both cases, a band-stop phenomenon is observed, but the coupling with the microstrip line is completely different. When using SRRs, there is a weak magnetic coupling since the magnetic field of the line does not fully penetrate through the SRRs. Whereas, when using SSRRs in the ground plane of the conducting line, the coupling is mainly electric due to the strong capacitive coupling created between the line and the inter-SSRRs metal.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"109 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":"115118052","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 an integrated antenna for automotive applications 汽车用集成天线设计
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852025
R. Azaro, F. D. De Natale, A. Massa, S. Piffer, E. Zeni
{"title":"Design of an integrated antenna for automotive applications","authors":"R. Azaro, F. D. De Natale, A. Massa, S. Piffer, E. Zeni","doi":"10.1109/ANTEM.2005.7852025","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852025","url":null,"abstract":"Due to specific requirements for automotive applications, the design of an integrated antenna system able to guarantee the connection to several wireless services, i.e. GPS, GSM/GPRS and COSPAS-SARSAT, must be faced as an optimization problem. Starting from electrical and geometrical constraints, the design of the antenna must be faced considering, in addition to usual antenna design procedures, also interferences phenomena arising from the integration of antennas belonging to different classes in a single compact device. In the paper are described the design phases of the device and the experimental and numerical validation activity conducted on a prototype of the antenna.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"11 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":"115428881","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
Toward full-wave simulations of cylindrical reflectors illuminated by focal-line phased arrays 聚焦线相控阵照射圆柱反射镜的全波模拟
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852057
C. Craeye
{"title":"Toward full-wave simulations of cylindrical reflectors illuminated by focal-line phased arrays","authors":"C. Craeye","doi":"10.1109/ANTEM.2005.7852057","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852057","url":null,"abstract":"Cylindrical reflectors, combined with phased-array line feeds, may represent a cost-effective way of performing directive transmission and observation. Independent study of the phased array and of the reflector may be relatively complex, and it involves several approximations. This paper is concerned with the efficient computation of the secondary element patterns associated with each antenna feed in its array-plus-reflector environment, with the help of the Method of Moments. The structure is assumed infinite in the direction of the cylinder axis. Simulation results are shown for a cylindrical reflector illuminated by line-feeds made of three dipole antennas in each unit cell.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"9 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":"124281634","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
Accurate 2-D model of planar antenna based on finite reflection grating fed by a dielectric waveguide 基于介质波导馈电有限反射光栅的平面天线精确二维模型
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852173
S. Steshenko, A. Kirilenko
{"title":"Accurate 2-D model of planar antenna based on finite reflection grating fed by a dielectric waveguide","authors":"S. Steshenko, A. Kirilenko","doi":"10.1109/ANTEM.2005.7852173","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852173","url":null,"abstract":"The accurate 2-d model of radiation of the electric modes of a PDW on finite number of rectangular grooves cut out on the surface of the perfectly conductive screen have been built for the first time.","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":"116637439","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
Discussion on the definition of the antenna radiation Q 关于天线辐射Q定义的讨论
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852060
B. Derat, A. Sharaiha, K. Mahdjoubi, J. Bolomey
{"title":"Discussion on the definition of the antenna radiation Q","authors":"B. Derat, A. Sharaiha, K. Mahdjoubi, J. Bolomey","doi":"10.1109/ANTEM.2005.7852060","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852060","url":null,"abstract":"According to the classical theories developed by Chu, Wheeler and subsequent authors, there exists a fundamental law which restricts the performances of antennas enclosed in a given volume. This law states that the antenna radiation quality factor Q (proportional to the ratio of time-average non-propagating energy to radiated power) cannot be smaller than the one obtained if only the lowest spherical order mode is excited out of the minimal sphere containing the antenna. However, some authors have recently contradicted this lower limit of Q, exhibiting antennas overcoming this bound. This paper shows that the contradiction mainly relies on a problem of formulation of the quality factor, resulting in a different definition of Q, compared with the classical one. Nevertheless, this raises the question of the interest of using other expressions of Q, depending on the parameters of the problem to be optimized. In fact, it is shown that, if the goal is to obtain the largest matching bandwidth or efficiency, then the Q factor should not be considered at the frequency point of balance between the electric and magnetic stored energies, as it is classically done. It would rather be calculated at the frequency where the reactive power is null (the antenna is matched) which is generally not equivalent to the stored energies balance for complex multi-mode antennas.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"74 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":"127349356","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
A new approach to the integration of series and shunt coplanar stubs 串并联共面存根集成的新方法
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852055
G. Cormier, M. Stubbs, K. Hettak, J. Wight
{"title":"A new approach to the integration of series and shunt coplanar stubs","authors":"G. Cormier, M. Stubbs, K. Hettak, J. Wight","doi":"10.1109/ANTEM.2005.7852055","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852055","url":null,"abstract":"This paper presents the design of new folded-stub matching networks in coplanar technology. Two examples are discussed that show how series and shunt matching stubs can be combined together to reduce the overall size of the structure. Simulation results of a shunt C, series L matching component are presented and compared with measurements.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"14 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":"126934553","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
Design and optimization of UWB antennas integrated into the chassis of a DVD player 集成到DVD播放机机箱中的超宽带天线的设计与优化
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852121
D. Manteuffel
{"title":"Design and optimization of UWB antennas integrated into the chassis of a DVD player","authors":"D. Manteuffel","doi":"10.1109/ANTEM.2005.7852121","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852121","url":null,"abstract":"This paper presents the design and optimization of UWB (Ultra WideBand) antennas for the integration into the chassis of a home-entertainment system. In the first step the shape of a planar monopole is optimized to provide broadband matching. Then the antenna is integrated at different positions into a model of a DVD player and the impact on the antenna performance is evaluated. Finally the transfer function of the complete system is extracted and used for propagation modeling in an artificial living home environment. The modeling of the complete antenna characteristics is based on FDTD simulations using the EMPIRE™ software. For the propagation modeling the ray-tracing software Wireless Insite is used. The results show that the antenna integration into the chassis leads to a directive radiation pattern that shows significant frequency dependence. Finally first simulation in order to calculate the network coverage in an artificial living room are performed comparing the integrated antenna inside the DVD player with an ideal isotropic antenna.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"55 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":"115997101","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
Interactions between millimeter waves and artificial biological membranes 毫米波与人工生物膜的相互作用
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852192
M. Zhadobov, V. Vié, R. Sauleau, M. Himdi, L. Le Coq, F. Artzner, I. Orlov, D. Thouroude
{"title":"Interactions between millimeter waves and artificial biological membranes","authors":"M. Zhadobov, V. Vié, R. Sauleau, M. Himdi, L. Le Coq, F. Artzner, I. Orlov, D. Thouroude","doi":"10.1109/ANTEM.2005.7852192","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852192","url":null,"abstract":"The objective of our work is to study the potential influence of non-thermal power level 60GHz radiation on the artificial biological membranes. Different types of characterization of lipid single layers are used: 1) measurements of superficial tension by Wilhelmy method and 2) observation by atomic force microscopy (AFM). Two major phospholipid constituents of biological membranes are considered: DPPC, DOPC. The results obtained for different power levels and irradiation times are compared and discussed. In the case of DPPC lipids, measurements of superficial pressure of the phospholipid membrane showed an increase of surface pressure of the monomolecular layer for a low level of superficial power density. The analysis of images obtained by AFM before and after millimeter wave radiation treatment did not show significant modifications in the structure of the membrane in which the lipids were found in co-existence of two phases (liquid-expanded state and liquid-condensed state).","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"114 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":"129415892","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
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