Journal of the Korean Institute of Telematics and Electronics A (전자공학회논문지A)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Design of Waveguide Bandpass Filters Using H-plane Step Discontinuities

도파관 H 면 계단형 불연속 구조를 이용한 대이동과 여파기의 설계

  • Nam, S.H. (Dept. of Elec. Engi., Sogang Univ.) ;
  • Kim, K.Y. (Dept. of Elec. Engi., Sogang Univ.) ;
  • Yun, S.W. (Dept. of Elec. Engi., Sogang Univ.) ;
  • Ann, C. (Dept. of Elec. Engi., Sogang Univ.)
  • 남수현 (서강대학교 전자공학과) ;
  • 김근영 (서강대학교 전자공학과) ;
  • 윤상원 (서강대학교 전자공학과) ;
  • 안철 (서강대학교 전자공학과)
  • Published : 1994.01.01
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Abstract

In this paper, waveguide banpass filters using H-plane step discontinuities are designed based on the field theory analysis and optimization of the resonator lengths as well as dimensions of discontinuities, instead of the conventional synthesis method based on the equivalent circuit. The waveguide inductive obstacles introduced by H-plane step discontinuities analyzed using mode-matching method and the generalized scattering parameters are derived. Using the derived scattering parameters of the discontinuities as well as those of resonators, waveguide bandpass filters are designed through optimization method, modified Razor search method proposed by J.H.Bandler. Using this design procedures, waveguide bandpass filters are designed and tested at X-band(center frequency 10GHz) as well as Ka-band(center frequency 35GHz).

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