Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Design and fabrication of multilayer LTCC BPF using Combline structure

Combline 구조를 이용한 적층 LTCC 대역통과 필터의 설계 및 제작

  • An, S.Y. (Korea Electronics Technology Institute) ;
  • Lee, Y.S. (Korea Electronics Technology Institute) ;
  • Bang, K.S. (Korea Electronics Technology Institute) ;
  • Kim, K.C. (Korea Electronics Technology Institute) ;
  • Kang, N.K. (Korea Electronics Technology Institute) ;
  • Song, H.S. (Korea Electronics Technology Institute)
  • Published : 2003.07.10
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Abstract

In this paper, 2.4 GHz WLAN BPF(Band Pass Filter) using LTCC(Low temperature cofiring ceramic) multilayer technology was simulated and manufactured. A modified ${\lambda}/4$ Hair-pin resonator with shunt-to ground loaded capacitor is used to shorten resonator length and improve circuit Q factor. Proposed BPF has a combline structure. Electro-magnetic Coupling between coupled strip-line resonators is controlled to provide attenuation poles at finite frequencies. The overall size of the filter is $3.2{\times}1.6{\times}1.3mm^3$. The measured result shows good agreement with simulated data.

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