Dual-Polarized Tx/Rx Antenna for UHF RFID Reader

UHF RFID 리더기용 송수신겸용 이중편파 안테나

  • 강채운 (호남대학교 전파공학과) ;
  • 윤기호 (호남대학교 전파공학과)
  • Published : 2005.11.05

Abstract

In this paper, Dual-polarized Tx/Rx antenna for RFID reader is designed and fabricated to apply to RFID reader. Each feeding network of Tx/Rx is designed to improve the port-isolation and cross-polarization, and sequential rotation feeding scheme has been applied to increase of axial ratio bandwidth. Measured results show that 2.35dBi of antenna gain in 900MHz$\sim$928MHz, 150MHz of 3dB axial ratio bandwidth, -38dB$\sim$-40dB of port-isolation, and -30dB$\sim$-40dB of cross-polarization.