Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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A Coupled-Line Type Waveguide Bandpass Filter using Normalized Impedance Concept

  • Park, Jun-Seok (School of Electrical Engineering, College of Engineering, Kookmin University) ;
  • Kim, Young-Tae (Division of Information Technology Engineering, Soonchunhyang University) ;
  • Kim, Sun-Hyeong (Division of Information Technology Engineering, Soonchunhyang University) ;
  • Lim, Jae-Bong (School of Electrical Engineering, College of Engineering, Kookmin University) ;
  • Cho, Hong-Goo (School of Electrical Engineering, College of Engineering, Kookmin University)
  • Published : 2003.11.01
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Abstract

In this paper, a coupled-line type waveguide bandpass filter is newly proposed. The proposed bandpass filter configuration consists of magnetically coupled waveguide cavities. In order to show the background of the proposed waveguide bandpass filter, the general coupled line TEM bandpass filter theory, which means the coupled line filter with arbitrary coupled line length and impedance level, will be briefly introduced. Calculations for the even- and odd-mode wave impedance of a coupled line waveguide structure are achieved based on the normalized impedance concept for a broad-side coupled waveguides by using vector finite element method(VFEM) calculation. Measured result of an implemented coupled-line type waveguide filter is presented.

Keywords

References

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