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Journal Article
A 48 GHz 196 dB-FOM LC VCO With Double Cap-Degeneration Negative-Resistance Cell
- Authors
- Ja-Yol Lee, Hae Cheon Kim, Sang-Heung Lee, Hyun-Kyu Yu
- Issue Date
- 2008-05
- Citation
- IEEE Microwave and Wireless Components Letters, v.18 no.5, pp.341-343
- ISSN
- 1531-1309
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Project Code
- 08MB1200, The Infrastructure Support for IT SoC Industry, Cho Ho Gil
- Abstract
- This letter presents a 48-GHz capacitively emitter-degenerated LC voltage controlled oscillator (VCO) with double cross-coupled pair showing higher f trans and lower input capacitance than typical cross-coupled pairs. The phase noise of the proposed LC VCO is measured as -114.5 dBc/Hz at 1 MHz offset from 48 GHz carrier, and a current of 6 mA is drawn in the VCO circuit. The proposed VCO shows an excellent figure of merit of -196 dB. © 2006 IEEE.
- KSP Keywords
- Cross-coupled pair, Figure of merit, LC voltage controlled oscillator(LC-VCO), Voltage controlled oscillator(VCO), phase noise