Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
547796 | Microelectronics Journal | 2009 | 7 Pages |
Abstract
A low phase noise Ka-band CMOS voltage-controlled oscillator is proposed in this paper. A new complementary Colpitts structure was adopted in a 0.18-μm CMOS process to achieve differential-ended outputs, low phase-noise performance, and low-power consumption. The designed VCO oscillates from 29.8 to 30 GHz with 200 MHz tuning range. The measured phase noise at 1-MHz offset is −109 dBc/Hz at 30 GHz and −105.5 dBc/Hz at 29.8 GHz. The power consumption of VCO is only 27 mW. In addition, compared with the published papers, the proposed CMOS VCO achieves the best figure of merit (FOM) of −185 dB at 29.95-GHz band.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Hardware and Architecture
Authors
Chien-Cheng Wei, Hsien-Chin Chiu, Yi-Tzu Yang, Jeffrey S. Fu,