A low-phase-noise CMOS quadrature voltage-controlled oscillator using a self-injection-coupled technique

Chi Hsien Lin, Hong Yeh Chang

研究成果: 雜誌貢獻期刊論文同行評審

17 引文 斯高帕斯(Scopus)

摘要

A modified coupled method for multiphase oscillator is proposed and demonstrated in a standard 0.18-μm CMOS technology. A self-injection-coupled (SIC) technique is used to couple two current-reused differential voltage-controlled oscillators (VCOs). Compared with the conventional parallel-coupled quadrature VCO (QVCO), the proposed QVCO using the SIC technique presents low phase noise without increasing dc power consumption. The proposed SIC-QVCO at 16.28 GHz demonstrated a low phase noise of-125 dBc/Hz at 1-MHz offset frequency and a tuning range of 290 MHz. The dc supply voltage and current consumption are 1.8 V and 6 mA, respectively. The chip size of the proposed SIC-QVCO is 0.75 × 0.6 mm2.

原文???core.languages.en_GB???
文章編號6303878
頁(從 - 到)623-627
頁數5
期刊IEEE Transactions on Circuits and Systems II: Express Briefs
59
發行號10
DOIs
出版狀態已出版 - 2012

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