대한전자공학회논문지TC (Journal of the Institute of Electronics Engineers of Korea TC)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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주기적인 좁은 슬릿을 갖는 소형화된 하이브리드 Rat-Race 결합기

Novel Compact Hybrid Rat-Race Couplers with Periodic Transverse Narrow Silts

  • Lee Chang On (Division of Electrical and Computer Engineering, Ajou University) ;
  • Lee Jin-Taek (Division of Electrical and Computer Engineering, Ajou University) ;
  • Kim Sang-Tae (ITEP) ;
  • Shin Chull-Chai (Division of Electrical and Computer Engineering, Ajou University)
  • 발행 : 2004.12.01
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초록

본 논문에서는 마이크로스트림 전송선로에 주기적으로 삽입된 좁은 폭의 슬릿을 이용하여 물리적 길이가 소형화되는 전송 선로인 ILCTL(inductively loaded compact transmission line)을 소개하였다. 주기적으로 부가된 좁은 폭의 슬릿은 마이크로스 트립 전송선로에서 직렬로 부가되는 인덕턴스 역할을 함으로써 전송선로의 길이를 소형화한다. 그리고 이러한 ILCTL을 이용하여 소형화된 rat-race 결합기를 구현하였다. 1.8 GHz에서 구현된 소형화된 rat-race 결합기는 일반적인 구조에 비해 60％의 크기를 가짐을 MoM(methods of moments)기반의 full-wave analysis를 이용한 2.5D EM(electromagnetic) solver의 계산과 제작 및 측정을 통하여 확인하였다.

In this paper, we introduce the concept of ILCTL(inductively loaded compact transmission line) that is new type of compact transmission line. ILCTL was realized by periodic narrow transverse slits working as series inductances in microstrip line. And compact hybrid rat-race couplers were designed by using the proposed ILCTL. The microstrip line hybrid rat-race coupler with silts of 8 per quarter wavelength at 1.8 GHz has reduced size of 60% as compared with conventional one and it is proved by simulation of EM solver with full-wave analysis based on MoM and measurements.

키워드

참고문헌

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