한국항해항만학회지 (Journal of Navigation and Port Research)

  • 제36권9호
  • /
  • Pages.737-740
  • /
  • 2012
  • /
  • 1598-5725(pISSN)
  • /
  • 2093-8470(eISSN)
한국항해항만학회 (Korean Institute of Navigation and Port Research)
권호 표지
DOI QR코드

DOI QR Code

A Miniaturized CMOS MMIC Bandpass Filter with Stable Center Frequency for 2GHz Application

  • Kang, In Ho (Dept. of Radio Engineering, Korea Maritime University) ;
  • Guan, Xin (Dept. of Radio Engineering, Korea Maritime University)
  • 투고 : 2012.09.18
  • 심사 : 2012.12.26
  • 발행 : 2012.12.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

A miniaturized CMOS bandpass filter for a single RF transceiver system is presented, using diagonally end-shorted coupled lines and lumped capacitors. In contrast to conventional miniaturized coupled line filters, it is proven that the effective permittivity variation of the coupled transmission line has no effect on shifting the center frequency when the bandpass filter is highly miniaturized. A bandpass filter at a center frequency of 2 GHz was fabricated by $0.18{\mu}m$ CMOS technology. The insertion loss with the die area of $1500{\mu}m{\times}1000{\mu}m$ is -5.14 dB. Simulated results are well agreed with the easurements. It also verify the center frequency stability in the compact size bandpass filter.

키워드

참고문헌

  1. Gopinath A.(1982), "Losses in Coplanar Waveguides," IEEE Transactions on Microwave Theory and Techniques, Vol. MTT-30, No. 7, July, pp. 1101-1104.
  2. Ghione, G., Goano, M.(1997), "A Closed-Form CADOriented Model for the High-Frequency Conductor Attenuation of Symmetrical Coupled Coplanar Waveguides," IEEE Transactions on Microwave Theory and Techniques, Vol. 45, No. 7, July, pp. 1065-1070. https://doi.org/10.1109/22.598442
  3. Kang, I., Shan, S., Wang, X., Yun, Y., Kim, J., Park, C.(2007a), "A Miniaturized GaAs MMIC filter for the 5GHz band," Microwave Journal, Vol. 50, Nov. 2007, pp. 88-94.
  4. Kang, I., Zhang, H., Yun, Y., Tasker, P., Benedikt, J., Porch, A.(2009b), "High Quality Factor Extraction of Miniaturized Coupled Line Bandpass Filters Implemented Using RF Silicon Integrated Circuits," EuMC, pp. 1169.
  5. Makimoto, M., Yamashita, S.(1980), "Bandpass filters using parallel coupled strip-line stepped impedance resonators," IEEE Trans, Microwave Tech., Vol. MTT-28, No. 12, Dec, pp. 1413-1417.
  6. Wadel B.(1991), Transmission Line Design Handbook, Artech House.