Journal of information and communication convergence engineering

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Design of Coupled Resonators Bandpass Filter with Defected Ground Structure

  • Kim, Gi-Rae (Department of Electronics Engineering, Silla University)
  • Received : 2011.03.10
  • Accepted : 2011.04.09
  • Published : 2011.04.30
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Abstract

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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References

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