A 1.8-v 6/9-GHz switchable dual-band quadrature LC VCO in SiGeBiCMOS technology

被引：46

作者：

Shin, HC ^{[1
]}

Xu, ZW ^{[1
]}

Chang, MF ^{[1
]}

机构：

[1] Univ Calif Los Angeles, High Speed Elect Lab, Dept Elect Engn, Los Angeles, CA 90025 USA

来源：

2002 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS (RFIC) SYMPOSIUM, DIGEST OF PAPERS | 2002年

关键词：

D O I：

10.1109/RFIC.2002.1011513

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 quadrature VCO that can be reconfigured between 6 and 9 GHz frequency bands. The dual-band VCO comprises a 6-GHz LC VCO, two 1/2-dividers, two mixers, and two 3-GHz notch filters. The 9-GRz output is generated based on a fractional frequency multiplication method by mixing the 6-GRz VCO output with its divide-by-two signal. The VCO, implemented in a 0.18-mum SiGe BiCMOS technology, shows a fast switching time of 3.6 nsec. The measured VCO phase noises are -106 dBc/Hz and -104 dBc/Hz at 1 MHz offset for 6 and 9-GHz modes, respectively, while draining 10.8 mA from a 1.8-V supply.

引用

页码：71 / 74

页数：4