The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Analysis of Antenna Isolation Using Decoupling Structure

격리구조 기법을 이용한 안테나 격리도 변화 분석

  • Lee, Junghun (Department of Electronics and Computer Engineering, Hanyang University) ;
  • Kim, Jihoon (Department of Electronics and Computer Engineering, Hanyang University) ;
  • Kim, Min-Gi (Department of Electronics and Computer Engineering, Hanyang University) ;
  • Kim, Hyung-Hoon (Biomedical Engineering, Kwangju Women's University) ;
  • Kim, Hyeong-Dong (Department of Electronics and Computer Engineering, Hanyang University)
  • 이정훈 (한양대학교 전자컴퓨터통신공학과) ;
  • 김지훈 (한양대학교 전자컴퓨터통신공학과) ;
  • 김민기 (한양대학교 전자컴퓨터통신공학과) ;
  • 김형훈 (광주여자대학교 보건의료공학과) ;
  • 김형동 (한양대학교 전자컴퓨터통신공학과)
  • Received : 2015.04.21
  • Accepted : 2015.12.07
  • Published : 2015.12.31
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Abstract

In this paper, isolation enhanced antenna using isolating resonator was proposed. Two loop type antennas were designed to operate at Wi-Fi band(2.4~2.5 GHz), in symmetry to the center, and are closely located to each other. In order to enhance isolation characteristics at Wi-Fi bands, isolating resonator was designed between the two loop type antennas. The proposed isolating resonator is a slot type antenna that enhances isolation with the control of the size, and by adjusting the value of capacitor($C_D$) the resonant frequency of the isolating resonator can easily be adjusted to enhance isolation characteristic at the target frequency.

본 논문에서는 격리도 향상 공진기(isolating resonator)를 사용하여 격리도를 향상시킨 안테나를 제안하였다. Wi-Fi 주파수(2.4~2.5 GHz) 대역에서 동작하는 두 개의 루프 안테나는 그라운드의 센터를 중심으로 대칭으로 설계되었고, 이격거리가 매우 가깝다. Wi-Fi 주파수 대역에서의 격리도 저하 특성을 개선하기 위해 두 안테나 사이에 격리도 향상 공진기를 삽입하였다. 제안된 격리도 향상 공진기는 슬롯타입 구조로 공진기의 사이즈 조절을 통해 격리도 특성을 향상시키고, 삽입된 커패시터($C_D$)를 통해 공진기의 공진 주파수를 이동시킴으로써 목표 주파수에서의 격리도 특성을 쉽게 향상시킬 수 있다.

Keywords

References

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