Design of Half-Wavelength Low-PASS Filter with Wideband Rejection Characteristic

광대역 저지특성을 갖는 반파장 저역통과 여파기 설계

  • 김영태 (순천향대학교 정보기술공학부) ;
  • 김영주 (국민대학교 전자정보 통신공학부) ;
  • 박준석 (국민대학교 전자정보 통신공학부) ;
  • 김형석 (중앙대학교 전자공학과) ;
  • 임재봉 (국민대학교 전자정보 통신공학부) ;
  • 조홍구 (중앙대학교 전자공학과)
  • Published : 2003.08.01

Abstract

In this paper, planar harmonic rejection low-pass filter is proposed to effectively suppress spurious response in stop-band. For suppress the unwanted signal such as spurious and harmonics, we presented a new design method controlled the higher order modes. The proposed low-pass filter was shown to suppress the spurious response by more than $20{\sim}40dB$ compared with conventional microstrip low-pass filters. The filter is evaluated by experiment and simulation with good agreement and shown to have attractive properties such as wide stop band range and low insertion loss.

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