Dual-band voltage controlled oscillator with optimized Gm

IEICE Electronics Express

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