한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
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서브-1V 직렬공진 바렉터 통합형 평형 공통 게이트와 공통 드레인 콜피츠 전압제어 발진기의 탱크 발진전압에 대한 해석

Analysis of Tank Oscillation Voltages of Sub-1V Series Tuned Varactor-Incorporating Balanced Common-Gate and Common-Drain Colpitts-VCO

  • 전만영 (동양대학교 정보통신공학과)
  • 투고 : 2014.06.27
  • 심사 : 2014.07.18
  • 발행 : 2014.07.31
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초록

본 연구는 1 V 미만 전원 전압에서 동작 가능한 직렬공진 바렉터 통합형 평형 공통 게이트 콜피츠 전압제어 발진기와 직렬공진 바렉터 통합형 평형 공통 드레인 콜피츠 전압제어 발진기의 탱크회로에서 나타나는 발진전압에 대한 해석적 연구를 수행하고 이를 시뮬레이션에 의해 확인한다. 해석적 연구의 결과는 직렬공진 바렉터 통합형 평형 공통 게이트 콜피츠 전압제어 발진기가 직렬공진 바렉터 통합형 평형 공통 드레인 콜피츠 전압제어 발진기보다 더 큰 발진전압을 탱크회로에 유도할 수 있으며 따라서 저 위상 잡음 발진에 보다 더 적합한 발진기임을 밝혀준다.

This study performs the analytical investigation of the oscillation voltages at the tanks of the series tuned varactor incorporating balanced common-drain, and common-gate Colpitts VCO which are able to work even at the sub-1V power supply voltages. The results the investigation predicts is verified by the simulation on the circuit behaviors of the two VCOs. The analytical investigation finds that the series tuned varactor incorporating balanced common-gate VCO generates greater oscillation voltage at the tank than the series tuned varactor incorporating balanced common-drain VCO does, which in turn is more suitable for generating the low phase noise oscillation signal from the sub-1V supply voltage than the series tuned varactor incorporating balanced common-drain VCO.

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참고문헌

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