{"title":"Planar ESPAR antenna based on Yagi-Uda array design for space diversity applications","authors":"Seok-Jae Lee, Kyung-Chul Kim, Sang‐Min Han","doi":"10.1109/APMC.2015.7411778","DOIUrl":null,"url":null,"abstract":"A planar Electronically Steerable Parasitic Array Radiator (ESPAR) antenna is proposed based on an Yagi-Uda array design for space diversity applications. Even though an conventional ESPAR antenna has various advantages of a simple structure, small volume, and cheap fabrication cost, it requires a 3-dimentional (3-D) form-factor. The proposed one is designed with planar active dipoles and parasitic element arrays from an Yagi-Uda design methodology. Four orthogonal arrays are configured of two active elements and eight parasitic elements, which is implemented with two bi-directional arrays. Each array has an active element, two reflector elements, and two director elements. The proposed architecture has been implemented on a planar substrate, and controlled with switched reactance for each parasitic element. From the experimental results, the proposed planar ESPAR antenna presents four orthogonal beams with a maximum gain of 10.74 dBi and a front to back ratio of 14.7 dB.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 Asia-Pacific Microwave Conference (APMC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APMC.2015.7411778","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
A planar Electronically Steerable Parasitic Array Radiator (ESPAR) antenna is proposed based on an Yagi-Uda array design for space diversity applications. Even though an conventional ESPAR antenna has various advantages of a simple structure, small volume, and cheap fabrication cost, it requires a 3-dimentional (3-D) form-factor. The proposed one is designed with planar active dipoles and parasitic element arrays from an Yagi-Uda design methodology. Four orthogonal arrays are configured of two active elements and eight parasitic elements, which is implemented with two bi-directional arrays. Each array has an active element, two reflector elements, and two director elements. The proposed architecture has been implemented on a planar substrate, and controlled with switched reactance for each parasitic element. From the experimental results, the proposed planar ESPAR antenna presents four orthogonal beams with a maximum gain of 10.74 dBi and a front to back ratio of 14.7 dB.