A Bias-Varied Low-Power K-band VCO in 90 nm CMOS Technology

作者:Liu, Szu-Ling*; Tian, Xin-Cheng; Hao, Yue; Chin, Albert
来源:IEEE Microwave and Wireless Components Letters, 2012, 22(6): 321-323.
DOI:10.1109/LMWC.2012.2197817

摘要

This letter presents a novel bias-varied low-power K-band voltage controlled oscillator (VCO) in a standard 90 nm CMOS technology. This circuit exhibits low power consumption of <= 3mW and a 12.2% tuning range with low phase noise characteristic. These performances are realized by combination of the transformer-feedback and the switchable active circuit block, which can control the dc power at different frequencies and improve the phase noise.