800MHz Band Dual-fed ICS Repeater Antenna with High Isolation

800MHz 대역 고격리 이중급전 ICS 중계기 안테나

  • Received : 2016.04.04
  • Accepted : 2016.04.08
  • Published : 2016.05.31


Even if ICS(Interference Cancellation System) repeater is used in wireless communication system, it has the disadvantage that it must have enough distance between Donor and Service antenna to be isolated. In this paper, new ICS repeater integrated antenna with high insolation characteristics is designed. The proposed antenna is fabricated for 800MHz and measured. Bandwidth and gain are optimized by changing the stub lengths near main patch and power divider, and also by changing the size of parasitic patch. The fabricated antenna has a return loss less than -13 dB, a gain over 3 dBi, and an isolation between the donor and the server antennas less than -56 dB from 824~894 MHz for CDMA mobile communication. Therefore, the proposed antenna structure can be applied to eliminate the shadow area and to expand the coverage area for any other wireless communication bands.


ICS repeater;Isolation;Dual feeding;Microstrip patch antenna


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