한국ITS학회 논문지 (The Journal of The Korea Institute of Intelligent Transport Systems)

  • 제11권5호
  • /
  • Pages.89-96
  • /
  • 2012
  • /
  • 1738-0774(pISSN)
  • /
  • 2384-1729(eISSN)
한국ITS학회 (The Korea Institute of Intelligent Transport Systems)
권호 표지
DOI QR코드

DOI QR Code

인터디지털 헤어핀 공진기를 이용한 UTIS용 저 위상잡음 발진기 설계

Design of a Low Phase Noise Oscillator Using an Interdigital Hairpin Resonator for UTIS

  • 정태성 (광운대학교 전파공학과) ;
  • 이현욱 (광운대학교 전파공학과) ;
  • 권성수 (광운대학교 전파공학과) ;
  • 이명길 (광운대학교 전파공학과) ;
  • 이종철 (광운대학교 전자융합공학과) ;
  • 윤기철 (한국과학기술원 정보전자연구소)
  • 투고 : 2012.09.03
  • 심사 : 2012.10.08
  • 발행 : 2012.10.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 인터디지털 헤어핀 공진기를 이용하여 UTIS (도시 교통 정보 시스템)에 사용 가능한 저 위상잡음 발진기를 설계 및 제작하였다. 인터디지털 헤어핀 공진기는 기존의 소형화된 헤어핀 공진기에 인터디지털을 접목시켜 공진기의 물리적인 크기를 기존 대비 약 70%로 축소시켰고, 고조파 특성을 향상시켰다. 또한 132 의 높은 Q 값은 저 위상잡음 발진기 설계에 적합하다. UTIS 용 저 위상잡음 발진기는 5.75 GHz에서 출력 12 dBm 의 전력과 100 kHz offset 에서 -100.8 dBc/Hz 의 낮은 위상잡음을 얻었다. 이는 기존의 헤어핀을 이용한 발진기에 비해 12 dB 정도의 개선을 보여준다.

In this paper, a low phase noise oscillator is designed using an interdigital hairpin resonator for UTIS (Urban Traffic Information Systems). The interdigital hairpin resonator has several characteristics compared with a conventional hairpin resonator, which are 70% size reduction and improvement of harmonic characteristics. In addition, Q (Quality factor) of the interdigital hairpin resonator is about 132, which is suitable for the design of a low phase noise oscillator. The oscillator suggested in this paper shows the output power of 12 dBm and the phase noise characteristic of -100.8 dBc/Hz at 100 kHz offset frequency from the center frequency of 5.75 GHz. The phase noise is improved by about 12 dB compared with a conventional oscillator using an interdigital hairpin resonator.

키워드

참고문헌

  1. B. Razavi, RF Microelectronics, Prentice Hall, 1997.
  2. P. G. Wilson and R. D. Carver, "An easy-to-use FET DRO design procedure suited to most CAD programs," IEEE MTT-S Int. Microwave Symp. Dig., pp. 1033-1036, June 1989.
  3. D. B. Leeson, "A simple model of feedback oscillator noise spectrum," Proc. IEEE, vol. 54, pp.329-339, Feb. 1966. https://doi.org/10.1109/PROC.1966.4682
  4. T. H. Lee and A. Hajimiri, "Oscillator-phase noise : A tutorial," IEEE J. Solid-State Circuits, vol. 35, no. 3, pp.326-336, March 2000. https://doi.org/10.1109/4.826814
  5. Y. T. Lee, J. S. Lin, C. S. Kim, D. Ahn, and S. W. Nam, "A compact-size microstrip spiral resonator and its application to microwave oscillator," IEEE Microwave and Wireless Components Lett., vol. 12, no. 10, pp.375-377, Oct. 2002. https://doi.org/10.1109/LMWC.2002.804556
  6. J. Zhu and Z. Feng, "Microstrip interdigital hairpin resonator with an optimal physical length," IEEE Microwave and Wireless Components Lett., vol. 16, no. 12, pp.672-674, Dec. 2006. https://doi.org/10.1109/LMWC.2006.885622
  7. H. Yabuki, M. Sagawa, and M. Makimoto, "Voltage controlled push-push oscillators using miniaturized hairpin resonators," IEEE MTT-S Int. Microwave Symp. Dig., pp.1175-1178, June 1994.
  8. 오현서, "ITS/텔레매틱스 주파수 현황," ETRI, 2011.
  9. M. Makimoto and S. Yamashita, "Bandpass filters using parallel coupled stripline stepped impedance resonators," IEEE Trans. Microwave Theory Tech, vol. 28, no. 12, pp.1413-1417, Dec. 1980. https://doi.org/10.1109/TMTT.1980.1130258
  10. S. Y. Lee, C. M. Taai, "New cross-coupled filter design using improved hairpin resonators," IEEE Trans. Microwave Theory Tech, vol. 48, no. 12, pp. 2482-2490, Dec. 2000. https://doi.org/10.1109/22.899002
  11. X. Y. She and Y. L. Chow, "Interdigital microstrip capacitor as a four-port network," Proc. Inst. Elect. Eng. H, vol. 113, pp.191-197, June 1986.
  12. A. P. S. Khanna and Y. Garault, "Determination of loaded, unloaded, and external quality factors of a dielectric reosonator coupled to a microstrip line," IEEE Trans. Microwave Theory Tech., vol. 31, no. 3, pp.261-264, Mar. 1983. https://doi.org/10.1109/TMTT.1983.1131473
  13. www.datasheetcatalog.com
  14. S. W. Seo, H. Y. Jung, J. H. Jeong, and C. H. Park, "Design of an X-band oscillator using novel miniaturized microstrip hairpin resonator," Proc. Asia-Pacific Microwave Conf., pp.1-4, Dec. 2007.
  15. H. W. Lee, K. C. Yoon, H. Nam, Y. S. Eo, and J. C. Lee, "A new K-band push-push VCO using a miniaturized hairpin resonator," Microwave and Optical Technol. Lett., vol. 52, no. 3, pp.699-701, Mar. 2010. https://doi.org/10.1002/mop.25007
  16. B. Shrestha, R. K. Maharjan, S. G. Cho, K. C. Yoon, and N. Y. Kim, "A low phase noise oscillator using spur line resonator for I-band application," Proc. Asia-Pacific Microwave Conf., pp.469-472, Dec. 2010.
  17. C. G. Hwang and N. H. Myung, "Novel phase noise reduction method for CPW based microwave oscillator utilizing a compact planar helical resoantor," Electronics and Communications Research Institute (ETRI) Journal, vol. 28, no. 4, pp.529-531, Mar. 2010.
  18. N. M. Mahyuddin, M. F. Ain, S. I. Hassan, and M. Sing, "Modeling of a 10 GHz dielectric resonator oscillation in ADS," Proc. Int. RF and Microwave Conf., pp.106-110, Sept. 2006.
  19. Y. T. Lee, J. S. Lim, C. S. Kim, D. Ahn, and S. W. Nam, "Compact size microstrip spiral resonator and its application to microwave oscillator," IEEE Microwave and Components Lett., vol. 12, no. 10, pp.375-377, Oct. 2002. https://doi.org/10.1109/LMWC.2002.804556
  20. 엄경환, "능동초고주파 회로설계입문," 홍릉과학출판사