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Design of an SIR BPF by a Novel EM Tuning of Individual Resonators

개별 공진기의 EM 조정을 통한 SIR로 구성된 대역 여파기의 설계

  • Yang, Seong-Sik (Department of Radio Science and Engineering, Chungnam National University) ;
  • Yeom, Kyung-Whan (Department of Radio Science and Engineering, Chungnam National University)
  • Published : 2007.07.31

Abstract

In SIR filter, fringing capacitances and discontinuities yield a distorted frequency response from those expected by design formulas, especially in higher frequencies. In this paper, a procedure is presented in order to compensate for fringing capacitances and step impedance discontinuities by EM simulation for a 5th order SIR filter. This method propose the procedure of tuning the coupling and the length of individual resonator by EM simulation. For the filter composed by the tuned resonators, no further tuning is required. The procedure is experimentally justified by comparing the measured data of the fabricated filter with the simulation results.

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