A dual-frequency and dual-polarization antenna with enhanced isolation between two ports using shorted metallic patches

Shorted metallic patch 를 이용하여 두 포트 사이의 고립도를 향상 시킨 이중대역 이중편파 안테나

  • Lee, Dong-Hyun (Department of Electrical Electronic Engineering Pohang University of Science and Technology (POSTECH)) ;
  • Kim, Jae-Hee (Department of Electrical Electronic Engineering Pohang University of Science and Technology (POSTECH)) ;
  • Jang, Jong-Hun (Department of Electrical Electronic Engineering Pohang University of Science and Technology (POSTECH)) ;
  • Im, Yun-Taek (Department of Electrical Electronic Engineering Pohang University of Science and Technology (POSTECH)) ;
  • Park, Wee-Sang (Department of Electrical Electronic Engineering Pohang University of Science and Technology (POSTECH))
  • 이동현 (포항공과대학교 전자전기공학과) ;
  • 김재희 (포항공과대학교 전자전기공학과) ;
  • 장종훈 (포항공과대학교 전자전기공학과) ;
  • 임윤택 (포항공과대학교 전자전기공학과) ;
  • 박위상 (포항공과대학교 전자전기공학과)
  • Published : 2006.06.21

Abstract

A suspended microstrip line structure over mushroom-like SMPs is designed and is applied to a dual-frequency and dual-polarization microstrip patch antenna. This structure has a distinctive and sharp rejection band and provides near 0 dB insertion loss outside the rejection band. Applying the structure to the conventional DFDP antenna enhanced the isolation between the two ports more than 20 dB. The structure is expected to have a wide range of applications in antennas and filters due to its compactness and integrability in circuits.

Keywords