The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Design of 950~2150MHz tunable bandpass ilter by cascading low and high pass filters

저역 및 고역 통과필터 종속연결형 950~2150MHz 가변대역통과필터의 설계

  • 신재준 (인천대학교 공과대학 전자공학과) ;
  • 구경헌 (인천대학교 공과대학 전자공학과)
  • Published : 1997.07.01
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Abstract

In this paper, a systematic design method of brjoadband tunable bandpass filter is presented by using user defined varactor diode method. The tunable bandpass filter is constructed as the cascade connection of low pass filter and high pass filter. The designed filter shows the characteristeristics of 2.7.+-.0.2dB insertion loss and 37.1.+-.5.0dB insertion loss and 32.1.+-.2.2dB image rejection. The results of the research can be used fodr the broadband tunable filter of DBS tuner and communication instruments.

Keywords

References

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