A Dual-Resonant Mode 10/22-GHz VCO With a Novel Inductive Switching Approach

被引：36

作者：

Liu, Szu-Ling ^{[1
,2
]}

Chen, Kuan-Han ^{[3
]}

Chin, Albert ^{[1
,2
]}

机构：

[1] Natl Chiao Tung Univ, Dept Elect Engn, Hsinchu 30010, Taiwan

[2] Natl Chiao Tung Univ, Inst Elect, Hsinchu 30010, Taiwan

[3] Orise Technol, Hsinchu 30078, Taiwan

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2012年 / 60卷 / 07期

关键词：

Dual-band voltage-controlled oscillator (VCO); dual resonance; self-resonance; switched LC-VCO; quality factor; VOLTAGE-CONTROLLED OSCILLATOR; LC-VCO; TUNING-RANGE; BAND;

D O I：

10.1109/TMTT.2012.2195674

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：

This paper presents a novel dual-band voltage-controlled oscillator (VCO) in a standard 0.18-mu m CMOS technology. With special design in the LC tank, the circuit exhibits two oscillation modes in different frequency bands. The frequency band selection is achieved by a switched coupled inductor with the tunable inductance and quality factor. This VCO can operate in a 10-GHz band with 7.6% tuning range and a 22-GHz band with 8% tuning range, while the core circuit draws a dc current of 8.44 mA from a 1.8-V supply voltage. The figures-of-merit at 10- and 22-GHz bands are -184.63 and -181.81 dBc/Hz, respectively. These performances are comparable with state-of-the-art dual-band LC-VCOs.

引用

页码：2165 / 2177

页数：13

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