IEICE Electronics Express | |
Dual-band voltage controlled oscillator with optimized Gm | |
Chun-Chieh Chen1  Chung-Chih Hung2  Zhe-Yang Huang2  | |
[1] Department of Electronic Engineering, Chung Yuan Christian University;Department of Electrical and Computer Engineering, National Chiao Tung University | |
关键词: UWB; VCO; dual-band; push-push; frequency doubler; | |
DOI : 10.1587/elex.12.20150207 | |
学科分类:电子、光学、磁材料 | |
来源: Denshi Jouhou Tsuushin Gakkai | |
【 摘 要 】
References(11)A differential VCO with differential push-push frequency doubler for dual-band application is proposed. The dual-band VCO (DB-VCO) adopts the tunable −Gm to optimize the wide tuning start-up condition. The proposed DB-VCO was implemented in 180-nm CMOS process. The DB-VCO provides a fundamental center frequency at 4.476 GHz and a double frequency at 8.985 GHz. A tuning range of fundamental frequency is 1.125 GHz (3.928 GHz�?5.053 GHz), and a tuning range of the double frequency is 2.257 GHz (7.856 GHz�?10.113 GHz) with maximum control voltage of 1.0 V can be achieved. The phase noise is �?96.0 dBc/Hz at 1 MHz offset from center of the DB-VCO fundamental frequency. And the phase noise is �?86.4 dBc/Hz at 1 MHz offset from center of the DB-VCO double frequency. The power dissipation of the DB-VCO core is 6.6 mW through 1.0 V supply voltage. The active area is 0.09 mm2.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO201911300030539ZK.pdf | 423KB | download |