정보통신설비학회논문지 (Journal of The Institute of Information and Telecommunication Facilities Engineering)

한국정보통신설비학회 (Korea Institute of Information and Telecommunication Facilities Engineering)
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다층 평면형 초고주파 필터의 설계

A Design of Multi-layer Planar Type Microwave Filter

  • 이홍섭 (강원대학교 전기전자정보통신공학부) ;
  • 황희용 (강원대학교 전기전자정보통신공학부)
  • Lee Hong-Seop (Dept. of Electrical and Computer Eng. Kangwon National University) ;
  • Hwang Hee-Yong (Dept. of Electrical and Computer Eng. Kangwon National University)
  • 발행 : 2005.03.01
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초록

In this paper, a planar type bandpass filter in multilayered PCB is presented. The multilayered PCB structure has some advantages on fabricating microwave devices such as the size reduction and ability of tight coupling by folding or embedding. The proposed BPF has two transmission zeros at the both sides of the center frequency by using independent electric and magnetic coupling structure. The designed BPF with four layer teflon PCBs of dielectric constant 2.94 has dimensions of 24x20x1.524 in mm, center frequency of 2.47GHz and bandwidth of about l00MHz. A good agrement is achieved between the measured result and the simulated one. The influences of air gaps between the layers are also analyzed and presented.

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