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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Design of Microstrip Line Bandpass Filter using Photonic Bandgap Structures

Photonic Bandgap 구조를 이용한 마이크로스트립 라인 대역통과 여파기 설계

  • 김태일 (아주대학교 전자공학부) ;
  • 김명기 (아주대학교 전자공학부) ;
  • 박익모 (아주대학교 전자공학부) ;
  • 임한조 (아주대학교 분자기술학과 및 전자공학부)
  • Published : 2001.06.01
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Abstract

This paper presents a design methodology of bandpass filter by using defect modes in photonic bandgap (PBG) structures. PBG structures are realized with alternating section of microstrip line arranged in a periodical manner. A passband is created within the stopband of PBG structures with defect modes, which can be generated by changing the period of certain part of PBG structure. We also extract a simple equivalent circuit of a bandstop filter by using several LC sections.

본 논문에서는 포토닉 밴드갭(PBG)의 결합모드(defect-mode)를 이용한 대역통과 여파기를 구현하는 방법에 대해 연구하였다. PBG 구조를 구현하기위하여 마이크로스트립 라인의폭을 달리하면 PBG 셀(cell)을 형성한 후, 이들 셀들을 주기적으로 배열하였으며, PBG 구조 일부분의 주기를 변화시킬 경우에 발생하는 결함모드를 이용하여 저지대역 내에서 통과대역을 구현하였다. 또한, 집중정수소자(Iumped-element)를 이용하여 PBG 구조의 등가회를 구현하였다.

Keywords

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