임피던스 공진기를 이용한 FR-4 임베디드 광대역필터

FR-4 Embedded UWB Filter using Uniform Impedance Resonator

  • 양창수 (광운대학교 전자정보통신대학 대학원 전자공학과) ;
  • 윤상근 (㈜ 대덕전자 연구소 선행기술팀) ;
  • 박재영 (광운대학교 전자정보통신대학 전자공학과)
  • 발행 : 2007.08.01

초록

In this paper, a novel embedded ultra wideband (UWB) band-pass filter is presented on a FR-4 package substrate including high Dk resin coated copper (${\varepsilon}_r=30$) film. The proposed UWB filter is comprised of a parallel resonator with meander-type uniform impedance resonator (UIR) and two series resonators with high Q circular stacked spiral inductor and metal-insulator-metal (MIM) capacitor. In order to obtain excellent attenuation characteristics by generating attenuation poles in lower and upper stop bands, a single MIM capacitor is added to each resonator. The fabricated FR-4 embedded UWB filter has insertion loss of -1.0dB and return loss of -11dB, respectively. It has also extremely wide bandwidth (over 50%) and small size ($3.7{\times}4{\times}0.77\;mm^3$) which is compatible with LTCC devices.

키워드

참고문헌

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