송신 30GHz/ 수신 20GHz 이중급전 원형편파 패치 안테나 설계

Design of Tx 3OGHz/ Rx 20GHz dual feeding circular polarized patch antenna

  • 발행 : 2004.07.14

초록

In this paper, circular polarized antennas of Tx 30GHz and Rx 20GHz are implemented in LTCC process. Tx antenna has a circular patch structure and Rx antenna has a ring patch structure. The feeding line of Tx antenna is placed in the center hole of Rx ring patch antenna which is printed under Tx circular patch antenna layer. It makes antenna size smaller. Tx antenna's return loss in under -10dB level from 30GHz to 31GHz and Rx antenna is under -10 dB from 20GHz to 21GHz. The isolation between two antennas is less than -20dB. Axial ratio is less than 3dB though out each band.

키워드