{"title":"Continuous one-sided beam scanning through broadside from backfire to forward fire by efficient surface-wave excitation","authors":"S. Podilchak, A. Freundorfer, Y. Antar","doi":"10.1109/URSI-EMTS.2010.5636997","DOIUrl":null,"url":null,"abstract":"A planar leaky-wave antenna (LWA) defined by a circular configuration of strips that utilizes surface waves (SWs) for leaky wave (LW) excitation is presented for continuous beam scanning and broadside radiation. Specifically, a printed directive surface-wave launcher (SWL) source is employed as the antenna feed, generating unidirectional SW field distributions on a grounded dielectric slab (GDS). Measured maximum gain with a 6° pattern beamwidth was observed at 22.3 GHz +12° away from the broadside direction. Beam scanning is also realized over a large radiating bandwidth (18.0 to 26 GHz) with pointing angles ranging from −55° to +47° in the E(x-z) plane.","PeriodicalId":404116,"journal":{"name":"2010 URSI International Symposium on Electromagnetic Theory","volume":"66 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 URSI International Symposium on Electromagnetic Theory","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/URSI-EMTS.2010.5636997","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
A planar leaky-wave antenna (LWA) defined by a circular configuration of strips that utilizes surface waves (SWs) for leaky wave (LW) excitation is presented for continuous beam scanning and broadside radiation. Specifically, a printed directive surface-wave launcher (SWL) source is employed as the antenna feed, generating unidirectional SW field distributions on a grounded dielectric slab (GDS). Measured maximum gain with a 6° pattern beamwidth was observed at 22.3 GHz +12° away from the broadside direction. Beam scanning is also realized over a large radiating bandwidth (18.0 to 26 GHz) with pointing angles ranging from −55° to +47° in the E(x-z) plane.
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