International journal of advanced smart convergence

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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Array Antenna Design for Ku-Band Terminal of L.E.O Satellite Communication

  • Kang, Seo (Cubeview co.) ;
  • Kang, JeongJin (Dept. of Information and Communication, Dong Seoul University) ;
  • Rothwell, Edward J. (Dept. of Electrical and Computer Engineering, Michigan State University)
  • Received : 2022.09.25
  • Accepted : 2022.10.02
  • Published : 2022.12.31
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Abstract

This study is a Ku-band array antenna for the manufacture of low-orbit satellite communication terminals, designed to have miniaturization, high gain, and wide beam width. The transmission of low-orbit satellite communication has a right-rotating circularly polarized wave, and the reception has a left-rotating circularly polarized wave. The 4×8 array antenna was separated for transmission and reception, and it was combined with the RF circuit part of the transmitter and receiver, and was terminated in the form of a waveguide for RF signal impedance matching in the form of a transition from the microstrip line to the waveguide. The 30° beam width of the receiver maximum gain of 19 dBi and the 29° beam width of the transmitter maximum gain of 18 dBi are shown. Through this antenna configuration, the system was configured to suit the low-orbit satellite transmission/reception characteristics.

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