{"title":"Fast analysis of cylindrical Luneburg lens radiation by green's function method","authors":"A. Korotkov, S. Knyazev, S. Shabunin","doi":"10.1109/LAPC.2015.7366099","DOIUrl":null,"url":null,"abstract":"Luneburg lens antenna radiation field is calculated with Green's functions of a layered cylindrical structure. Electric field components of Luneburg lens excited by electric and magnetic dipoles, Huygens source and a circularly polarized antenna formed by two crossed electric dipoles with 90-degree phase shift are considered. Electric field calculation for the Luneburg lens antenna in the far zone is simplified by saddle-point method. Radiation patterns are shown. The influence of an outer cylinder radius and number of layers on radiation efficiency is investigated. Polarization properties of a cylindrical Luneburg lens excited by a source with circular wave polarization are analyzed. The proposed method significantly reduces computing time for multilayered lens in comparison with the most commonly used in antenna design.","PeriodicalId":339610,"journal":{"name":"2015 Loughborough Antennas & Propagation Conference (LAPC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 Loughborough Antennas & Propagation Conference (LAPC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LAPC.2015.7366099","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Luneburg lens antenna radiation field is calculated with Green's functions of a layered cylindrical structure. Electric field components of Luneburg lens excited by electric and magnetic dipoles, Huygens source and a circularly polarized antenna formed by two crossed electric dipoles with 90-degree phase shift are considered. Electric field calculation for the Luneburg lens antenna in the far zone is simplified by saddle-point method. Radiation patterns are shown. The influence of an outer cylinder radius and number of layers on radiation efficiency is investigated. Polarization properties of a cylindrical Luneburg lens excited by a source with circular wave polarization are analyzed. The proposed method significantly reduces computing time for multilayered lens in comparison with the most commonly used in antenna design.
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