A Dual-Band CMOS Voltage-Controlled Oscillator Implemented With Dual-Resonance LC Tank

被引：63

作者：

Jang, Sheng-Lyang ^{[1
]}

Wu, Yuan-Kai ^{[1
]}

Liu, Cheng-Chen ^{[1
]}

Huang, Jhin-Fang ^{[1
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Elect Engn, Taipei, Taiwan

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2009年 / 19卷 / 12期

关键词：

CMOS; phase noise; series-tuned and parallel-tuned LC resonator; voltage controlled oscillator (VCO); VCO;

D O I：

10.1109/LMWC.2009.2033526

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new fully integrated, dual-band CMOS voltage controlled oscillator (VCO) is presented. The VCO is composed of n-core cross-coupled Colpitts VCOs and was implemented in 0.18 mu m CMOS technology with 0.8 V supply voltage. The circuit allows the VCO to operate at two resonant frequencies with a common LC tank. The VCO has two control inputs, one for continuous control of the output frequency and one for band switching. This VCO is configured with 5 GHz and 12 GHz frequency bands with differential outputs. The dual-band VCO operates in 4.78-5.19 GHz and 12.19-12.61 GHz. The phase noises of the VCO operating at 5.11 and 12.2 GHz are -117.16 dBc/Hz and -112.15 dBc/Hz at 1 MHz offset, respectively, while the VCO draws 3.2/2.72 mA and 2.56/2.18 mW consumption at low/high frequency band from a 0.8 V supply.

引用

页码：816 / 818

页数：3

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