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

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4 Author(s)
Szu-Ling Liu ; Department of Electronic Engineering and Institute of Electronics, National Chiao Tung University, Hsinchu, Taiwan ; Xin-Cheng Tian ; Yue Hao ; Albert Chin

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.

Published in:

IEEE Microwave and Wireless Components Letters  (Volume:22 ,  Issue: 6 )