Proceedings of the Korea Electromagnetic Engineering Society Conference (한국전자파학회:학술대회논문집)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Design of LTCC(Low Temperature Co-fired Ceramic) Bandpass Filter to Improve Characteristic of Rejection Band

저지대역 특성을 개선한 LTCC 대역 통과 여파기 설계

  • 김영주 (국민대학교 전자정보 통신공학부) ;
  • 박준석 (국민대학교 전자정보 통신공학부) ;
  • 임재봉 (국민대학교 전자정보 통신공학부) ;
  • 조홍구 (국민대학교 전자정보 통신공학부)
  • Published : 2003.11.15
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Abstract

In this paper, a design of multi-layered BPF(bandpass filter) using LTCC(Low Temperature Co-fired Ceramic) process by a lumped-elements is proposed for SOP(system-on-a-chip) of wireless communication systems. The proposed BPF improved a characteristic of rejection band to build an attenuation pole caused by structurally adjacent co-inductance and coupling. The simulation data shows a bandwidth of 90MHz from a center frequency of 2.4GHz, a return loss of 27dB, an insertion loss of 3.2dB, and an attenuation of at least 20dBc at $f_0{\pm}250MHz$. Simulations have used serenade circuit simulation and HFSS EM simulation.

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