The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Satellite Communication Microstrip 8X2 Away Antenna for TX / RX Dual Operation at Ku-band

Ku 대역 위성통신 송수신 겸용 마이크로스트립 8X2 배열 안테나

  • 윤재승 (한국전자통신연구원 무선방송연구소) ;
  • 전순익 (한국전자통신연구원 무선방송연구소) ;
  • 최재익 (한국전자통신연구원 무선방송연구소) ;
  • 채종석 (한국전자통신연구원 무선방송연구소)
  • Published : 2002.07.01
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Abstract

Microstrip $8{ imes}2$ sub-array antennas for a extension to active phased array antennas are designed, fabricated and measured for TX/RX dual operation in satellite communication and a reception of satellite broadcasting. For the frequency range from 11.7 to 12.75 GHz for RX and from 14 to 14.5 GHz for TX, two orthogonal linear polarizations of ${pm}45^{\circ}$ are used to transmit and receive simultaneously with one radiator. They adopt dual resonance between two patches for wideband characteristics in RX band and show isolation characteristics over 20 dB. An electrical beam tilt of $30^{\circ}$ is achieved and a tapered power distribution, narrow element spacing are used for the purpose of low side-lobe characteristics.

본 논문에서는 이동차량에서 위성과의 송, 수신 양방향 서비스와 위성 방송 수신을 목적으로 하는 능동 위상 배열 마이크로스트립 안테나를 위한 8$\times$2부 배열을 설계, 제작, 측정하였다. 수신 11.7-12.75 GHz, 송신 14-14.5 GHz 대역에 대하여 단일 소자로 송, 수신을 위하여 $\pm$45$^{\circ}$ 직교화 된 두 개의 선형 편파를 사용한다. 수신 대역의 광대역 특성을 위하여 두 패치 사이의 이중 공진을 이용하였고, 공기층의 두께를 조절하여 20 dH 이상의 격리도 특성을 보였다. 앙각 방향에 대하여 전기적으로 30$^{\circ}$ 빔 틸트 하였으며 낮은 부엽 수준을 위하여 테이퍼형 전력분배와 좁은 소자간 간격을 사용하였다.

Keywords

References

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