Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on the Phase Noise Improvement of Oscillator using Dielectric-rod loaded Cavity Resonators with HIS End-plates

고온초전도체와 유전체 삽입 공동 공진기를 이용한 발진기의 위상잡음 개선에 관한 연구

  • 이원희 (포항공과대학교 BK21 미래정보기술사업단)
  • Published : 2009.02.01
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Abstract

In this paper, an oscillator using dielectric-rod loaded cavity resonators with HTS(High Temperature Superconductor) end-plates was presented. It was operated at X-band. A two port cavity resonator was incorporated into a basic feedback loop oscillator configuration. A rutile loaded cavity resonator with HTS thin film end-plates was used to provide the quality factor between $10^4$ and $10^6$. A parallel feedback oscillator was constructed with a dielectric loaded cavity resonator, an amplifier, and a directional coupler. At 300 K, the experimental results showed the phase noise of -108 dBc/Hz at a 100 kHz offset frequency. At 26 K, the results was -118.8 dBc/Hz at same offset frequency.

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References

  1. B. Cheng, 'Signal generator spectral purity considerations in RF communications testing', Microwave Journal, Vol. 10, No. 1, p. 22, 1999
  2. C. Moore and B. Kopp, 'Phase and amplitude noise due to analog control components', Microwave Journal, Vol. 12, No. 1, p. 64, 1998
  3. 정동철, '고온초전도체의 마이크로파 통신소자 연구개발 현황', 전기전자재료, 16권, 11호, p. 11, 2003
  4. G. Gonzalez, 'Microwave Transistor Amplifiers 2/E : Analysis and Design S/C', Prentice Hall, p. 98, 2006
  5. A. Grebennikovi, 'RF and Microwave Transistor Oscillator Design', John wiley & Sons, p. 83, 2007
  6. G. D. Vendelin, A. M. Pavio, and U. L. Rohde, 'Microwave Circuit Design using Linear and Nonlinear Techniques 2ND', John Wiley & Sons, p. 719, 2005
  7. E. Ngoya, J. Rousset, and D. Argello, 'Rigorous RF and Microwave Oscillator Phase Noise Calculation by Envelope Transient Technique', IEEE MTT-S Digest, p. 91, 2000