Design of Ku-Band Tx/Rx Microstrip Patch Antenna for Satellite Communications

Ku-밴드 위성통신을 위한 송수신겸용 마이크로스트립 패치 안테나 설계

  • 김규성 (한양대학교 전파공학과) ;
  • 김태우 (한양대학교 전파공학과) ;
  • 최재훈 (한양대학교 전파공학과)
  • Published : 1999.12.01


In this paper, two types of $2\times2$ Rx/Tx microstrip patch antenna are proposed to implement Ku-band satellite communications. The single-fed dual resonance patch antenna as the first type derives perpendicular polarizations at two resonant frequencies from a single patch radiator, using aperture coupling via a bended single-feeding line and a cross-shaped slot. The double-fed dual resonance patch antenna as the second type implements dual resonance with mutually orthogonal polarizations by mixing the two feeding mechanisms of the microstrip line and the aperture coupling. Especially, in the double-fed dual resonance antenna case, air-gap is introduced to broaden the bandwidth. Through measurement, each of the two types of antenna was verified to function properly both Rx and Tx. The double-fed dual resonance antenna shows excellent performance in the bandwidth and the crosspolarization characteristics.



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