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- W2021050662 abstract "본 논문에서는 도체 판 대신 인공 자기 도체를 반사판으로 이용하여 방사 특성이 개선되고 두께를 줄인 PCS용 기지국 안테나 구조를 제안하였다. 반사판으로 도체 판을 사용하는 기존 기지국 안테나의 경우, 도체 판 끝부분에서 기생 방사가 발생하고 이는 안테나의 후방사를 증가시켜 기지국 안테나의 방사 특성을 악화시킨다. 하지만 인공 자기 도체를 사용하면 표면에서의 높은 임피던스에 의해 표면파가 억압되어 후방사를 크게 줄일 수 있다. 그리고 부엽 특성도 개선되어 서비스 지역이 겹치는 문제를 막을 수 있다. 뿐만 아니라, 인공 자기 도체 표면에서의 <TEX>$0^{circ}$</TEX> 반사 위상에 의해 기지국 안테나의 두께를 또한 줄일 수 있다. In this paper, a Base Station Antenna(BSA) utilizing Artificial Magnetic Conductor(AMC) as reflector instead of common conductive plate to improve radiation characteristics and achieve low-profile is proposed. In the case of the conventional BSA on conductive surface which acts as a reflector, a secondary radiation is caused at the corner of the conductive surface, and it increases the back-lobe of the antenna, resulting in deteriorating the radiation characteristic of the conventional BSA. However, using the AMC, the back-lobe of the BSA can be largely reduced by the surface wave suppression. And the Side-Lobe Level(SLL) is also improved, resulting in preventing the service area overlapped. Furthermore, due to the <TEX>$0^{circ}$</TEX> reflection phase on AMC, the profile of the BSA can be also reduced." @default.
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- W2021050662 date "2009-12-31" @default.
- W2021050662 modified "2023-10-01" @default.
- W2021050662 title "The Radiation Characteristics Improvement and Thickness Reduction of Base Station Antenna with Artificial Magnetic Conductor" @default.
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- W2021050662 doi "https://doi.org/10.5515/kjkiees.2009.20.12.1233" @default.
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