Design of a Low-Phase-Noise LC Voltage Controlled Oscillator

被引：0
|
作者：
Dong, Chenghong [1 ]
Zhang, Changchun
Guo, Yufeng
Liu, Leilei
Ji, Xincun
Zhang, Yi
机构：
[1] Nanjing Univ Posts & Telecommun, Jiangsu Prov Engn Lab RF Integrat & Microassembly, Nanjing 210023, Jiangsu, Peoples R China
来源：
COMPUTER AND INFORMATION TECHNOLOGY | 2014年 / 519-520卷
关键词：
LC VCO; Low Phase Noise; body-biasing; Q-enhancement; VCO;
D O I：
10.4028/www.scientific.net/AMM.519-520.1095
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A novel low phase noise LC Voltage Controlled Oscillator (LC-VCO) is designed in standard 0.18 mu m CMOS technology. Instead of common NMOS cross-pairs for a conventional complementary LC VCO, both body-biasing and Q-enhancement techniques are employed to provide a larger negative resistance for the VCO. Post-layout simulations showed that it can oscillate at a frequency range of 4.34-4.73GHz, and comsume a supply current of 1.52mA from a supply voltage of 1.8V. The VCO achieves a phase noise of -132.8dBc/Hz @ 1MHz offset and a figure of merit (FOM) of -195.9dBc/Hz at the frequency of 4.5GHz. A die area of 475 mu mx498.6 mu m is occupied.
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收藏
页码：1095 / +
页数：2
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