Abstract
Abstract In this paper, we have studied isolation enhancement using a suppression of surface wave to improve performance of array antenna. To reduce isolation between elements of array antenna, perfect magnetic conductor(PMC) and SOFT-surface is designed and located at center of ground plane, isolation and gain is simulated by commercial full wave simulator(HFSS). As a result, isolation of more than 40 dB and gain improvement of 2.2 dBi are obtained at E-plane array in case of both PMC and SOFT-surface. At H-plane array, air coupling is dominant compared to coupling by surface wave. It is conclude that this study is useful for design of compact array antenna and performance improvement of array antenna.Key words: Array Antenna, Surface Wave, Isolation, Perfect Magnetic Conductor(PMC), SOFT-Surface h7#ij[klmfn6o3p,qEr%s#t.uh7#2015v Q6(wx6)ypz#y{3p,qEr%s[|#fnt(No. 2015R1A6A1A03031833).u }~LwW*QF ZI(Department of Electronic Information and Communication Engineering, Hongik University) *}~LwW*)*# o(Metamaterial Electronic Device Research Center, Hongik University)Manuscript received October 2, 2015 ; Revised December 1, 2015 ; Accepted February 12, 2016. (ID No. 20151002-17S)Corresponding Author: Jeong-Hae Lee (e-mail: jeonglee@hongik.ac.kr)
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