한국전자파학회논문지 (The Journal of Korean Institute of Electromagnetic Engineering and Science)

  • 제12권4호
  • /
  • Pages.487-493
  • /
  • 2001
  • /
  • 1226-3133(pISSN)
  • /
  • 2288-226X(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
권호 표지

깍지 낀 결합 구조와 슬롯을 이용한 마이크로스트립 패치 대역통과필터의 특성 개선

Improvement of the Microstrip Patch Bandpass Filter using Interdigital Couping Structure and Embeded Slot

  • 김현 (동국대학교 전자공학과) ;
  • 임현준 (동국대학교 전자공학과) ;
  • 윤현보 (동국대학교 전자공학과)
  • Kim, Hyun (Department of Electronic Engineering, Dong Kuk University) ;
  • Lim, Hyun-Jun (Department of Electronic Engineering, Dong Kuk University) ;
  • Yoon, Hyun-Bo (Department of Electronic Engineering, Dong Kuk University)
  • 발행 : 2001.06.01
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초록

본 논문에서는 새로운 구조의 마이크로스트립 패치 대역통과필터를 제안하였다. 이 구조에서는 필터의 삽입 손실과 크기를 동시에 줄이기 위해 패치구조에 깍지 낀 결합구조와슬롯을 적용하였다. 그 결과, 5 GHz의 공진 주파수로 설계한 패티 대역통과 필터를 공지 주파수는 1.8946 GHz로 삽입 손실은 -2.168 dB에서 -0.379 dB로 줄일 수 있었다. 제안된 필터는 1.8946 GHz 공진 주파수의 상용화된 마이크로스트립 필터인 최소단위의 평행 edge 결합필터의 길이와 비교할 때 64.9 % 줄일 수 있었고, 삽입손실도 더 우수한 특성을 가짐을 확인하였다.

In this paper, A new microstrip bandpass filter is proposed. The novelty of the proposed structures is to use a interdigital capacitor and embeded slot that are fanned on a patch resonator such that its insertion loss and size can be significantly reduced simultaneously. As a result, it is found that the resonant frequency of patch filter designed at 5 GHz is decreased to 1.8946 GHz and the insertion loss is reduced from -2.168 dB to -0.379 dB. This proposed filter has small size and low insertion loss in comparison with the conventional parallel edge coupled bandpass filter.

키워드

참고문헌

  1. IEEE Trans. MTT. v.47 no.9 Aperture-Coupled Microstrip Open-Loop Resonators and Their Applications to the Design of Novel Microstrip Bandpass Filters J. S. Hong
  2. IEE Proc. -Microw. Propag. v.146 no.1 Microstrip Cross-Coupled Trisection Bandpass Filters with Asymmetry Frequency Characteristics J. S. Hong
  3. Electronics Letters 29th. v.34 no.22 Harmonic Suppressed Microstrip Multistage Coupled Ring Bandpass Filters J. Manti;A. Griol
  4. IEEE Trans. MTT. v.47 no.5 New Plannar Dual-Mode Filter Using Closs-Slotted Patch Resonator for Simultaneous Size and Loss Reduction Lei Zhu;Pierre-Marie Wecowski;Ke Wu
  5. IEEE Trans. MTT. v.48 no.3 Accurate Circuit Model of Interdigital Capacitor and Its Application to design of New Quassi-Lumped Miniaturized Filters with Suppression of Harmonic Resonance Lei Zhu;Ke Wu
  6. IEEE Trans. MTT. Microstrip Ring Bandpass Filters with New Interdigital Side-Coupling Structure W. C. Jung;H. J. Park
  7. IEEE Trans. MTT. v.44 A Circulary Polarized Small-size Microstrip Antenna with a Cross Slot H. Iwasaki
  8. Microstrip Antennas I. J. Baul;P. Bhartia
  9. IEEE Trans. MTT. v.MTT-18 Capacitances and their Application to Lumped-Element Microwave Intergrated Circuit G. D. Alley
  10. Handbook of Microwave Integrated Circuit R. K. Hoffman