Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Design and Fabrication of Wideband High Pass Filter Using Left-Handed Transmission Line

LH 전송선을 이용한 광대역 고역통과 필터 설계 및 제작

  • Received : 2013.10.16
  • Accepted : 2013.12.20
  • Published : 2014.02.28
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Abstract

In this paper, the unit cell of LH structure using microstrip transmission line and chip capacitor is devised, and the reactive components of equivalent circuit are extracted from the proposed unit cell. And then, we have analyzed for the unit cell parameters and applied the characteristics to the wideband high pass filter design. This filter cascading several unit cells with high pass property has been implemented on microstrip transmission line, and the performance has been the band rejection characteristics of 62.9 dB in the stop band to 0~2.18 GHz and less than the insertion loss of 1.17 dB in the pass band from 3.0G Hz to 12.75 GHz.

본 논문에서는 칩커패시터와 마이크로스트립 선로를 이용하여 LH 구조의 단위셀을 고안하고, 제안된 단위셀로부터 등가회로를 추출하여 단위셀의 제반 특성을 분석하였으며, 광대역 고역통과필터를 설계하는데 적용하였다. 이 필터는 고역통과 특성을 갖는 여러 개의 단위셀을 종속 연결하여 마이크로스트립 전송선에 구현하였으며, 그 성능은 0~2.18 GHz의 저지대역에서 62.9dB의 대역제거 특성과 3.0~12.75 GHz의 통과대역에서 1.17dB 이하의 삽입손실을 갖는다.

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References

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