Pub Date : 1986-06-08DOI: 10.1109/APS.1986.1149712
M. Calvo, J. Molina, R. Lois
{"title":"Fast analysis of multimode conical horns by bessel-jacobi series method","authors":"M. Calvo, J. Molina, R. Lois","doi":"10.1109/APS.1986.1149712","DOIUrl":"https://doi.org/10.1109/APS.1986.1149712","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133620994","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}
Pub Date : 1986-06-08DOI: 10.1109/APS.1986.1149743
Y. Antar, L. Allan
{"title":"Backscattering characteristics of dielectric targets at 9.6 GHz","authors":"Y. Antar, L. Allan","doi":"10.1109/APS.1986.1149743","DOIUrl":"https://doi.org/10.1109/APS.1986.1149743","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"8 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132339584","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}
Pub Date : 1986-06-08DOI: 10.1109/APS.1986.1149682
V. Shahmirian, S. Kesler
INTRODUCTION One of the primary purposes of radar sensor arrays is the determination of hearings of clmely spaced radiating sources. DiEiculties arise when, in addition to direct paths there exist multipath components in the received signal. Multipath components are scaled and delayed replica of the direct signal, propagating a t the same frequency and are fully correlated with the direct received signals.
{"title":"Sensitivity of the high-resolution eigenanalysis methods to estimated number of sources","authors":"V. Shahmirian, S. Kesler","doi":"10.1109/APS.1986.1149682","DOIUrl":"https://doi.org/10.1109/APS.1986.1149682","url":null,"abstract":"INTRODUCTION One of the primary purposes of radar sensor arrays is the determination of hearings of clmely spaced radiating sources. DiEiculties arise when, in addition to direct paths there exist multipath components in the received signal. Multipath components are scaled and delayed replica of the direct signal, propagating a t the same frequency and are fully correlated with the direct received signals.","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134428175","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}
Pub Date : 1986-06-08DOI: 10.1109/APS.1986.1149671
K. Woo
{"title":"Multiple beam antenna feed development","authors":"K. Woo","doi":"10.1109/APS.1986.1149671","DOIUrl":"https://doi.org/10.1109/APS.1986.1149671","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115191565","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}
Pub Date : 1986-06-08DOI: 10.1109/APS.1986.1149760
S. Nomoto, Y. Mizuguchi, F. Watanabe, M. Yamada
{"title":"Offset multi-focal reflector antenna","authors":"S. Nomoto, Y. Mizuguchi, F. Watanabe, M. Yamada","doi":"10.1109/APS.1986.1149760","DOIUrl":"https://doi.org/10.1109/APS.1986.1149760","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"117 28","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114285299","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}
Pub Date : 1986-06-08DOI: 10.1109/APS.1986.1149585
H.-M. Lee
{"title":"Time-domain radiation from an aperture","authors":"H.-M. Lee","doi":"10.1109/APS.1986.1149585","DOIUrl":"https://doi.org/10.1109/APS.1986.1149585","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114817168","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}
Pub Date : 1986-06-08DOI: 10.1109/APS.1986.1149676
R. Janaswamy, D. Schaubert
A method for calculating the radiation pattern of end-fire tapered slot antennas with or without dielectric substrate is presented. The method involves a two-step procedure: 1) determine the field distribution of a traveling wave along the tapered slot, and 2) compute the radiation from this slot field by using the half-plane Green's function to account for termination effects. Acceptable estimates of the slot field usually can be obtained from a stepped approximation to the tapered geometry. The method has been verified by comparisons to measured patterns for various dielectric substrates and antenna dimensions. However, the effect of lateral truncation has not yet been successfully modeled. Experimental patterns showing this effect are presented.
{"title":"Analysis of the tapered slot antenna","authors":"R. Janaswamy, D. Schaubert","doi":"10.1109/APS.1986.1149676","DOIUrl":"https://doi.org/10.1109/APS.1986.1149676","url":null,"abstract":"A method for calculating the radiation pattern of end-fire tapered slot antennas with or without dielectric substrate is presented. The method involves a two-step procedure: 1) determine the field distribution of a traveling wave along the tapered slot, and 2) compute the radiation from this slot field by using the half-plane Green's function to account for termination effects. Acceptable estimates of the slot field usually can be obtained from a stepped approximation to the tapered geometry. The method has been verified by comparisons to measured patterns for various dielectric substrates and antenna dimensions. However, the effect of lateral truncation has not yet been successfully modeled. Experimental patterns showing this effect are presented.","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114994378","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}
Pub Date : 1986-06-08DOI: 10.1109/APS.1986.1149583
H. Lai, L. Bryans
{"title":"A low-sidelobe offset gregorian reflector","authors":"H. Lai, L. Bryans","doi":"10.1109/APS.1986.1149583","DOIUrl":"https://doi.org/10.1109/APS.1986.1149583","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123168165","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}
Pub Date : 1986-06-08DOI: 10.1109/APS.1986.1149588
Stephen A. Soroka
The electrical and mechanical constraints placed on the element design for a very small dual linear polarized broadband phased array has resulted in the development of a physically compact quad-ridge horn antenna. Using its lowest operating frequency, this antenna has an aperture size of1/4lambda times 1/4lambdaand an axial length of1/3lambda. These dimensions represent a reduction in size of approximately 50% over conventional quad ridge horn antenna designs. With this size reduction however, there was no significant degradation in antenna performance. Specifically, a 3 to 1 operational bandwidth with a maximum VSWR of 3.5 to 1 in the operating band was achieved. Other antenna characteristics are dual polarization, 17 dB minimum isolation between ports, extremely broad pattern shape, and a coaxial feed system which originates from the rear of the antenna. This paper presents both the theoretical and empirical techniques employed throughout the development cycle. Also included are measured data for the original physically compact antenna and a second antenna based on a scaled version of this design.
{"title":"A physically compact quad ridge horn design","authors":"Stephen A. Soroka","doi":"10.1109/APS.1986.1149588","DOIUrl":"https://doi.org/10.1109/APS.1986.1149588","url":null,"abstract":"The electrical and mechanical constraints placed on the element design for a very small dual linear polarized broadband phased array has resulted in the development of a physically compact quad-ridge horn antenna. Using its lowest operating frequency, this antenna has an aperture size of1/4lambda times 1/4lambdaand an axial length of1/3lambda. These dimensions represent a reduction in size of approximately 50% over conventional quad ridge horn antenna designs. With this size reduction however, there was no significant degradation in antenna performance. Specifically, a 3 to 1 operational bandwidth with a maximum VSWR of 3.5 to 1 in the operating band was achieved. Other antenna characteristics are dual polarization, 17 dB minimum isolation between ports, extremely broad pattern shape, and a coaxial feed system which originates from the rear of the antenna. This paper presents both the theoretical and empirical techniques employed throughout the development cycle. Also included are measured data for the original physically compact antenna and a second antenna based on a scaled version of this design.","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124190371","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}
Pub Date : 1986-06-08DOI: 10.1109/APS.1986.1149794
R. Harrington, A. Konrad
{"title":"Scattering by a dielectric cylinder partially covered by a conductor","authors":"R. Harrington, A. Konrad","doi":"10.1109/APS.1986.1149794","DOIUrl":"https://doi.org/10.1109/APS.1986.1149794","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125146362","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}
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