A 40 GHz Differential Push-Push VCO in 0.18 μm CMOS for Serial Communication

被引:4
|
作者
Yazdi, Ahmad [1 ]
Green, Michael M. [1 ]
机构
[1] Univ Calif Irvine, Dept Elect & Comp Sci, Irvine, CA 92697 USA
关键词
CMOS; cross-coupled; differential push-push voltage-controlled oscillator (VCO); monolithic microwave integrated circuit (MMIC); phase noise; PHASE NOISE;
D O I
10.1109/LMWC.2009.2032016
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A 40 GHz differential CMOS push-push VCO is proposed for high-frequency applications. It is shown analytically that the phase noise of the VCO output at the full-rate frequency is close to 6 dB higher than that of the half-rate frequency. The result of the phase noise analysis is verified by simulations and measurements. A phase noise of 101 dBc/Hz was achieved at 1 MHz offset frequency. The proposed push-push VCO design enables higher VCO frequency operation with differential output, which is suitable for millimeter wave frequency synthesizers.
引用
收藏
页码:725 / 727
页数:3
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