Combline 구조를 이용한 적층 LTCC 대역통과 필터의 설계 및 제작

Design and fabrication of multilayer LTCC BPF using Combline structure

  • 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)
  • 발행 : 2003.07.10

초록

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.

키워드