본 논문에서는 원형편파를 이용하는 적층구조의 광대역 평판형 배열안테나를 연구하였으며, 적층구조의 보조적인 편파유발부와 기생패치의 최적 설계를 통하여, 임피던스 및 축비특성에서의 이중공진특성을 구현하였다 따라서, 기존에 사용되고 있는 축비대역확장기법을 사용하지 않는 단일급전방식 원형편파용 평판안테나의 대역확장에 기여할 수 있으며, 공진주파수의 보정설계를 통하여 이중대역안테나로의 활용을 기대할 수 있다. 또한, 해당안테나를 국내 위성방송서비스대역에 적용하여 설계 및 제작하였으며, 임피던스대역폭 9.7%, 안테나 이득 24 dBi와 이중공진특성에 의한 2.8 %(11.4 GHz)와 1.4 %(11.8 GHz)의 3 dB 축비대역폭을 갖는다.
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