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

The Institute of Electronics and Information Engineers (대한전자공학회)
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Design of Linearized VCDRO with Novel PBG Ground Plane and Varactor Circuit

새로운 PBG 접지면과 바랙터 회로를 이용한 선형화된 VCDRO의 설계

  • Published : 2004.05.01
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Abstract

This paper presents a design of 12㎓ VCBRO(voltage controlled dielectric resonator oscillator) using a novel PBG(photonic band gap) ground plane and a varactor circuit that enhances the frequency linearity of VCO with different bias to varactors. The PBG structures are used for suppressing the second and third harmonics without any filters. To simulate the accurate resonating frequency, a DR coupled with microstrip lines is analysed by FTM(finite element method) simulation, and the results are transformed into scattering parameters to design the VCO. Some measured results are presented to show the usefulness of the proposed techniques.

본 논문은 접지면에 새로운 형태의 PBG(photonic band gap) 구조와 바랙터에 서로 다른 바이어스 전압을 인가하여 전압에 따른 주파수의 선형성이 향상된 12㎓ VCDRO(voltage controlled dielectric resonator oscillator)를 설계하였다 접지면의 PBG 구조는 출력단에 부가적인 필터 없이 2, 3차 고조파를 억압하였으며, 마이크로스트립 라인과 결합된 유전체 공진기의 공진주파수를 정확히 해석하기 위하여 FEM(fuite element method) 시뮬레이션을 이용하여 추출된 산란계수를 VCDRO 설계에 사용하였다. 측정된 결과를 통하여 본 논문에서 제안한 기법의 유용함을 보여주었다.

Keywords

References

  1. C. Y. Hang, V. Radisic, Y. Qian and T. Itoh, 'High efficiency power amplifier with novel PBG ground plane for harmonic tunig', IEEE MTT-S Dig., vol. 2, pp. 807-810, 1999 https://doi.org/10.1109/MWSYM.1999.779882
  2. Eric Holzman, Solid-state Microwave PowerOscillator Design, Artech House, pp. 382-392, 1992
  3. Phillip G Wilson and Richard D Carver, 'An easy-to-use FET DRO design procedure suited to most CAD programs', IEEE MTT-S Dig., pp. 1033-1036, 1989 https://doi.org/10.1109/MWSYM.1989.38899
  4. Darko Kajfez and Eugene J. Hwan, 'Q-factor measurement with network analyzer', IEEE MTT, vol. 32, pp. 666-670, July 1984
  5. Y. Komatsu and Y. Murakami, 'Coupling coefficient between microstrip line and dielectric resonator', IEEE Trans. MTT, vol. 31, no. 1, pp. 34-40, January 1983
  6. D. A. Williams, 'A highly linearised mm- wave voltage controlled oscillator for FMCW radar applications,' Solid State Components for Radar, IEE Colloquium on, 12 Feb 1988, pp. 601-615
  7. GaAs constant gamma hyperabrut tuning varactors, MA-COM., Data sheet