대한전자공학회논문지TC (Journal of the Institute of Electronics Engineers of Korea TC)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

PBG 구조를 이용한 대역통과 여파기 고조파 억제에 관한 연구

Harminic Suppression of Band Pass Filter Using Photonic Band Gap Structure

  • 서철헌 (숭실대학교 정보통신전자공학부)
  • Seo Chulhun (School of Electronic Engineering, Soongsil University)
  • 발행 : 2004.01.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

접지면에 PBG와 Aperture를 설치함으로써 고성능 대역통과 여파기를 설계하였다. 대역통과 여파기의 하모닉 특성은 PBG 구조에 의하여 개선되었고 대역폭은 Aperture에 의하여 확대되었다. 세가지 크기를 갖는 PBG 구조가 결합되어 새로운 PBG 구조가 도출되었다. 설계 중심 주파수는 2.2 GHz이었고 대역폭은 Aperture에 의하여 $40\%$ 확대되었다.

A bandpass filter has been designed by employing the PBG structure and the aperture on the ground together in this paper. The harmonics of band pass filter have been suppressed by employing the PBG structure and the bandwidth of it has been broadened by using the aperture on the ground. The three kinds of PBG structures has been combined to suppress the harmonics of the filter The center frequency of filter is 2.2 GHz and the bandwidth has been increased from $40\%$ by the aperture and all harmonics were suppressed about 35dBc by the PBG. The insertion loss has been reduced 3.0dB to 2.6dB.

키워드

참고문헌

  1. David M. Pozar, Microwave Engineering, Addison Wesley, 1990
  2. I. Rumsey, M. Piker-May, and P. K. Kelly, 'Photonic bandgap structures used as filters in microstrip circuits,' IEEE Microwave Guided Wave Lett., vol. 8, no. 10, pp. 336-338, Oct, 1998 https://doi.org/10.1109/75.735413
  3. T. Kim and C. Seo, 'A novel photonic bandgap structure for low-pass filter of wide stopband,' IEEE Microwave Guided Wave Lett., vol. 10, no. 1, pp. 13 - 15, Jan. 2000 https://doi.org/10.1109/75.842072
  4. Serksun Im, Jaehoon Kim, Chulhun Seo, Naesoo Kim and Youngwan Kim, 'Improvement of Microstrip Open Loop Resonator Filter Using Aperture' IEEE MTT 2002 Symposium https://doi.org/10.1109/MWSYM.2002.1012212
  5. Fei-Ran Yang; Kuang-Ping Ma; Yongxi Qian; Itoh. T.,'A uniplanar compact pho-tonic bandgap (UC- PBG) structure and its applications for microwave circuit' IEEE-MTT, vol.47, no. 11, Aug 1999
  6. Rui Qiang: Yunyi Wang: Duxin Chen, 'A novel microstrip bandpass filter with two cascaded PBG structures', Antennas and Propagation Society, 2001 IEEE Inter- national Sym, 2001 https://doi.org/10.1109/APS.2001.959773
  7. Lei Zhu, Ke Wu, 'Multilayered coupled-microstrip lines technique with aperture compensation for innovative planar filter design', Microwave Conference, 1999 Asia Pacific, Volume2, Dec. 1999 https://doi.org/10.1109/APMC.1999.829811