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A low‐voltage varactorless LC‐VCO in 65‐NM CMOS technology
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- Authors
- Hui Dong Lee, Jong Ho Jung, Kwang Chun Lee
- Issue Date
- 2013-02
- Citation
- Microwave and Optical Technology Letters, v.55, no.2, pp.245-247
- ISSN
- 0895-2477
- Publisher
- John Wiley & Sons
- Language
- English
- Type
- Journal Article
- Abstract
- A varactorless LC-voltage-controlled oscillator (VCO) topology is proposed.To exploit a frequency tuning, LC-VCO adopts a variable capacitance block composed with a transistor and a capacitor. The prototype LC-VCO is implemented in a 65-nm CMOS technology. The measurement results show a tuning range of 4.31-4.45 GHz and a phase noise of -115.8 dBc/Hz at 1 MHz offset frequency. Power consumption is 2.44 mA from a 0.5 V supply. The die area is only 0.126 mm2. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:245-247, 2012; View this article online at wileyonlinelibrary. com. DOI 10.1002/mop.27310 Copyright © 2012 Wiley Periodicals, Inc.
- KSP Keywords
- 45 GHz, CMOS Technology, Frequency tuning, LC voltage controlled oscillator(LC-VCO), Power Consumption, Tuning Range, Variable capacitance, measurement results, phase noise, voltage-controlled oscillator(VCO)