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

  • 제8권4호
  • /
  • Pages.46-52
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  • 2009
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  • 1738-0774(pISSN)
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  • 2384-1729(eISSN)
한국ITS학회 (The Korea Institute of Intelligent Transport Systems)
권호 표지

상하 결합 마이크로스트립 공진기를 이용한 광대역 저 위상 잡음 전압제어발진기

Wideband and tow Phase Noise Voltage Controlled Oscillator Using a Broadside Coupled Microstrip Resonator

  • 문성모 (서울시립대학교 전자전기컴퓨터공학부) ;
  • 이문규 (서울시립대학교 전자전기컴퓨터공학부)
  • 발행 : 2009.08.31
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 낮은 위상잡음 특성과 넓은 주파수 가변을 갖는 새로운 전압제어 발진기의 구조를 제안한다. 제한한 구조는 서셉턴스 기울기 파라미터를 높이기 위해 임피던스 변환기를 이용하여 직렬 공진 회로를 병렬 공진 회로로 변환하는 방법을 사용하고 있다. 제작한 전압제어발진기는 0V$\sim$9V 가변전압으로 10.1GHz$\sim$10.7GHz의 600MHz 주파수 가변과 -119dBc/Hz@1MHz 이하의 우수한 위상잡음 특성을 보인다. 측정된 고조파 억압특성은 28dB이상이다.

In this paper, a novel VCO (Voltage Controlled Oscillator) structure is proposed to achieve the characteristic of low phase noise and a wide frequency tuning range. The proposed scheme adopts an impedance transforming technique to change a series resonance into a parallel resonance for maximizing the susceptance slope parameter. The manufactured VCO shows a frequency tuning bandwidth of 600MHz from 10.1GHz to 10.7GHz with a tuning voltage varying from 0 to 9V, an excellent phase noise below -119dBc/Hz@1MHz offset. The harmonic suppression is measured above 28dB.

키워드

참고문헌

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