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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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A Wideband Ridge SIW-to-SIW Transition for Microwave Applications

초고주파 응용을 위한 광대역 Ridge SIW와 SIW 전이 구조

  • Jeon, Jiwon (Department of Electronic Engineering, Ajou University) ;
  • Byun, Jindo (Department of Electronic Engineering, Ajou University) ;
  • Lee, Hai-Young (Department of Electronic Engineering, Ajou University)
  • Received : 2012.11.30
  • Accepted : 2013.03.08
  • Published : 2013.03.31
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Abstract

In this paper, we propose a wideband ridge SIW(Ridge Substrate Integrated Waveguide)-to-SIW(Substrate Integrated Waveguide) transition. The proposed transition structure is designed to acquire a wide bandwidth by inserting through via holes at the regular interval for an impedance matching and an E-field mode matching method. The measurement results show a fractional bandwidth is 29.1 % at 20 dB return loss from the center frequency(11 GHz). The maximum insertion loss is 0.49 dB from 9.21 GHz to 12.41 GHz.

본 논문에서는 초고주파 대역에서 활용 가능한 ridge 기판 집적 도파관(RSIW:Ridge Substrate Integrated Waveguide)과 기판 집적 도파관(SIW: Substrate Integrated Waveguide) 간의 전이 구조를 제안한다. 제안된 전이 구조는 일정한 간격으로 도통 비아를 삽입하여 임피던스 정합과 전계 정합을 하였으며, 광대역 정합 특성을 갖는다. 측정 결과에서 20 dB 이하의 반사 손실 대역이 9.21~12.41 GHz이고, 중심 주파수 11 GHz 기준으로 비대역폭이 29.1 %임을 확인하였다. 또한, 가용 대역폭에서 급전 선로 부분을 제외한 전이 구조만의 삽입 손실은 최대 0.49 dB이다.

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References

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