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Design of Compact Coupled Resonators Bandpass Filter with Defected Ground Structure

  • 사당요 (신라대학교 전자공학과) ;
  • 박영배 (신라대학교 전자공학과) ;
  • 김기래 (신라대학교 전자공학과)
  • 발행 : 2010.10.27

초록

In this paper a four-pole elliptic function bandpass filter is designed with two ground slots. A research of microstrip bandpass filters (BPF) using defected ground structures (DGS) is presented. DGS technique allows designs of tight couplings without the necessity of using very narrow coupling gaps. The simulator Sonnet is used to design the resonator and to calculate the coupling coefficient of the basic coupling structure. Compared to similar microstrip filters without defected ground structure, the simulated performances of these novel structures indicate some technological advantages.

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