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.1986.1149678
R. Dinger
{"title":"Spatial prefiltering of interference sources using subarrays of reactively steered adaptive arrays","authors":"R. Dinger","doi":"10.1109/APS.1986.1149678","DOIUrl":"https://doi.org/10.1109/APS.1986.1149678","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"18 3 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":"128386029","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.1986.1149755
P. Kildal, E. Lier, E. Olsen
{"title":"Efficient computer programs for study and optimization of blockage and diffraction in symmetrical reflector antennas","authors":"P. Kildal, E. Lier, E. Olsen","doi":"10.1109/APS.1986.1149755","DOIUrl":"https://doi.org/10.1109/APS.1986.1149755","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"17 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":"130557838","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}
Pub Date : 1986-06-08DOI: 10.1109/APS.1986.1149690
T. Teshirogi, M. Tanaka, S. Ohmori
{"title":"Airborne phased array antenna for mobile satellite communications","authors":"T. Teshirogi, M. Tanaka, S. Ohmori","doi":"10.1109/APS.1986.1149690","DOIUrl":"https://doi.org/10.1109/APS.1986.1149690","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"69 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":"128061487","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.1986.1149597
J. Bull, L. Burgess, R. Flam, R. Peloso
{"title":"A broadband electrically small adaptive array","authors":"J. Bull, L. Burgess, R. Flam, R. Peloso","doi":"10.1109/APS.1986.1149597","DOIUrl":"https://doi.org/10.1109/APS.1986.1149597","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"75 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":"121315776","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.1986.1149791
G. Shaw
{"title":"The effect of modal element position errors on the radiation pattern of large space-deplyable arrays","authors":"G. Shaw","doi":"10.1109/APS.1986.1149791","DOIUrl":"https://doi.org/10.1109/APS.1986.1149791","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"26 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":"131441882","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.1986.1149618
G. D'Elia, G. Leone, R. Pierri
The synthesis of an aperture field radiating a prescribed radiation pattern has ben widely considered in the literature from both a theoretical and a numerical point of view. As known, a complete statement of the problem is strictly related to the choice of the functional of the radiated field to be minimized by the synthesis procedure . This functional allows the restriction of the set of all the possible solutions (which in general, at the expense of the superdirectivity gain, could reproduce as closely as desired.any prescribed pattern) to an appropriate subset. In this way, accounting for the physical realizability of the pattern,the synthesis problem, which is intrinsically an ill-posed problem, becomes a.stable one. When the functional to be minimized involves both amplitude and phase of the radiated field, the so called "field synthesis" problem is obtained. When only the amplitude of he radiated field is prescribed, the "power synthesis" problem is referred to. It is to be noted that, as shown by Voytovich €11, the freedom on the phase of the reconstructed pattern. in the power synthesis problem, leads to an improvement of the precision of the reconstruction of the prescribed amplitude. In the following the power synthesis problem is then considered.
{"title":"A numerical method in power synthesis of aperture antennas","authors":"G. D'Elia, G. Leone, R. Pierri","doi":"10.1109/APS.1986.1149618","DOIUrl":"https://doi.org/10.1109/APS.1986.1149618","url":null,"abstract":"The synthesis of an aperture field radiating a prescribed radiation pattern has ben widely considered in the literature from both a theoretical and a numerical point of view. As known, a complete statement of the problem is strictly related to the choice of the functional of the radiated field to be minimized by the synthesis procedure . This functional allows the restriction of the set of all the possible solutions (which in general, at the expense of the superdirectivity gain, could reproduce as closely as desired.any prescribed pattern) to an appropriate subset. In this way, accounting for the physical realizability of the pattern,the synthesis problem, which is intrinsically an ill-posed problem, becomes a.stable one. When the functional to be minimized involves both amplitude and phase of the radiated field, the so called \"field synthesis\" problem is obtained. When only the amplitude of he radiated field is prescribed, the \"power synthesis\" problem is referred to. It is to be noted that, as shown by Voytovich €11, the freedom on the phase of the reconstructed pattern. in the power synthesis problem, leads to an improvement of the precision of the reconstruction of the prescribed amplitude. In the following the power synthesis problem is then considered.","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"79 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":"133347243","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.1986.1149735
A. Chang, R. Mittra
{"title":"A block-iteration approach to the problem of radar scattering from PEC and edge-loaded strips","authors":"A. Chang, R. Mittra","doi":"10.1109/APS.1986.1149735","DOIUrl":"https://doi.org/10.1109/APS.1986.1149735","url":null,"abstract":"","PeriodicalId":399329,"journal":{"name":"1986 Antennas and Propagation Society International Symposium","volume":"87 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":"123070429","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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