Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Design of Frequency-Tunable Microstrip Filter Using Triple-Mode Substrate Integrated Waveguide (SIW) Structure

3중모드 기판집적 도파관(SIW) 구조를 이용한 주파수 가변 마이크로스트립 필터 설계

  • Kyeong-Min Na (Dept. of Electronics Engineering, Chosun University) ;
  • Dong-Woo Kim (Radio Environment Safety Division, National Radio Research Agency) ;
  • Soon-soo Oh (Dept. of Electronics Engineering, Chosun University)
  • Received : 2024.03.18
  • Accepted : 2024.03.25
  • Published : 2024.03.31
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Abstract

In this paper, a triple-mode frequency-tunable filter is proposed to meet the recent demands of various frequency bands of mobile communication services. This filter has a tunable structure that can adjust the resonance frequency using a variable capacitor. To improve the quality factor, a SIW(Substrate Integrated Waveguide) structure was introduced and a structure that induces three resonance modes was implemented through a circular hole located in the center. The change in electric field distribution and resonance frequency by the variable capacitor was simulated using HFSS, and the change in electric field distribution and resonance frequency of Triple Mode mode was confirmed.

본 논문에서는 최근 요구되는 이동통신 서비스의 다양한 주파수 대역 요구를 충족시키기 위해 3중 모드 주파수 가변 필터를 제안한다. 이 필터는 가변 커패시터를 활용하여 공진 주파수를 조절할 수 있는 튜닝 가능한 구조를 가지고 있다. 품질 계수를 향상하기 위해 SIW (Substrate Integrated Waveguide) 구조를 도입하였고, 중앙에 위치한 원형 홀을 통해 세 개의 공진 모드를 유발하는 구조를 구현하였다. 가변 커패시터에 의해 변화에 따른 전계분포와 공진 주파수의 변화를 EM 전파해석툴인 HFSS를 사용하여 시뮬레이션하였으며, 3중 모드의 전계분포와 공진 주파수의 변화를 확인하였다.

Keywords

Acknowledgement

This research was supported by a grant from Chosun University in Korea, 2023.

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