雷达科学与技术2016，Vol.14Issue(5)：558-562,5.DOI:10.3969/j.issn.1672-2337.2016.05.020
基于电流复用技术的亚 mW 级CMOS VCO 设计
Design of Sub-Milliwatt CMOS VCO with Current-Reuse Technique
摘要
Abstract
In this paper,we investigate amplitude compensation techniques of current-reuse (CR)volt-age-controlled oscillators (VCOs)and propose an innovative mono-spontaneous transconductance match (m-STM)compensation technique.Due to the asymmetrical structure of CR VCOs,the imbalance between two differential oscillating amplitudes is inevitable.The proposed m-STM technique is able to overcome the unpre-dictable amplitude imbalance.Compared to a traditional spontaneous transconductance match technique,the m-STM consumes less voltage headroom and is thus suitable for low-voltage application.The VCO is implemented in a 0.18 μm RF CMOS process.Measured results show that the VCO exhibits a high operation frequency range from 2.05 to 2.68 GHz,a corresponding frequency tuning range of 26.3%,and achieves a measured phase noise of -1 1 7.6 dBc/Hz at 1 MHz offset from the 2.4 GHz carrier frequency while consuming only 0.8 mW.关键词
幅度非平衡/电流复用/压控振荡器/低功耗Key words
amplitude imbalance/current reuse/voltage-controlled oscillator/low power分类
信息技术与安全科学引用本文复制引用
陈绍东,牛子昱..基于电流复用技术的亚 mW 级CMOS VCO 设计[J].雷达科学与技术,2016,14(5):558-562,5.基金项目
河南省科技厅基础与前沿类项目(No.162300410076) （No.162300410076）
河南省高等学校重点科研项目计划(No.15B520008) （No.15B520008）
