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A Study on the Design of Dual­Band Equilateral­Triangular Microstrip Antennas  

문정군 (한국전력공사)
이종철 (세기스타)
황호순 (경상대학교 컴퓨터정보통신연구소)
이문수 (경상대학교 컴퓨터정보통신연구소)
Abstract
For dual­band operation, it can be done by loading two pair of slits in the equilateral­triangular patch, one embeded close to the side edges of the patch and the other inserted at the bottom edge of the patch. The frequency ratio of the two operating frequencies can be tuned by varing the positions and lengths of the inserted slots at the bottom edge of the patch. While the calculated frequency ratio of the antenna by Ensemble 5.0 is $1.66 ({f_10}=1.928GHz, {f_20}=3.2GHz)$, the measured one is 2.04 $({f_10}=1.6806 GHz, {f_20}=3.435 GHz)$. The error in the frequency ratio is due on the fabrication dimension and feeding position error as well as on the permittivity dispersion effect.
Keywords
듀얼­밴드;삼각형 패치;슬릿;안테나;
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