Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2004.06b
- /
- Pages.465-468
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- 2004
A 5.5 GHz VCO with Low-Frequency Noise Suppression
저주파 잡음이 억압된 5.5 GHz 전압제어발진기
-
Lee J.Y
(SiGe Team Electronics and Telecommunications Research Institute)
;
-
Bae B.C.
(SiGe Team Electronics and Telecommunications Research Institute)
;
-
Lee S.H.
(SiGe Team Electronics and Telecommunications Research Institute)
;
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Kang J.Y
(SiGe Team Electronics and Telecommunications Research Institute)
;
- Kim B.W. (SiGe Team Electronics and Telecommunications Research Institute) ;
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Oh S.H
(Chungnam National University)
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이자열
(한국전자통신연구원, SiGe 팀)
;
-
배현철
(한국전자통신연구원, SiGe 팀)
;
-
이상흥
(한국전자통신연구원, SiGe 팀)
;
-
강진영
(한국전자통신연구원, SiGe 팀)
;
- 김보우 (한국전자통신연구원, SiGe 팀) ;
-
오승엽
(충남대학교)
- Published : 2004.06.01
Abstract
In this paper, we describe the design and implementation of the new current-current negative feedback (CCNF) voltage-controlled oscillator (VCO), which suppresses 1/f induced low-frequency noise. By means of the CCNF, the high-frequency noise as well as the low-frequency noise is prevented from being converted into phase noise. The proposed CCNF VCO shows 11-dB reduction in phase noise at 10 kHz offset, compared with the conventional differential VCO. The phase noise of the proposed VCO is -87 dBc/Hz at 10 kHz offset frequency from 5.5-GHz carrier. The proposed VCO consumes 14.0 mA at 2.0 V supply voltage, and shows single-ended output power of -12.0 dBm.
Keywords