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A 1.7-mW, 16.8% frequency tuning, 24-GHz transformer-based LC-VCO using 0.18-µm CMOS technology

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3 Author(s)
Yen-Hung Kuo ; Dept. of Electrical Engineering and Graduate Institute of Communication Engineering, National Taiwan University, Taipei, Taiwan, 106, R.O.C. ; Jeng-Han Tsai ; Tian-Wei Huang

A low-power, wide-tuning-range voltage-controlled oscillator (VCO) using 0.18-mum CMOS technology is presented in this paper. The proposed transformer-based LC-VCO has 16.8% frequency tuning range without switching techniques. To achieve wide-tuning-range and low-power in the same time, the current-reused topology is selected to demonstrate a low-power consumption of 1.7 mW. The VCO oscillation frequency at 22.6 GHz has a phase noise of -95 dBc/Hz at 1 MHz offset.

Published in:

2009 IEEE Radio Frequency Integrated Circuits Symposium

Date of Conference:

7-9 June 2009