A Subthreshold Low-Voltage Low-Phase-Noise CMOS LC-VCO with Resistive Biasing  

作　　者：Jungnam Bae Saichandrateja Radhapuram Ikkyun Jo Takao Kihara Toshimasa Matsuoka 

机构地区：[1]Graduate School of Engineering, Osaka University, Osaka, Japan [2]Faculty of Engineering, Osaka Institute of Technology, Osaka, Japan

出　　处：《Circuits and Systems》2015年第5期136-142,共7页电路与系统（英文）

摘　　要：This paper presents a low-phase-noise LC voltage-controlled oscillator (LC-VCO) with top resistive biasing in subthreshold region. The subthreshold LC-VCO has low-power and low-phase-noise due to its high transconductance efficiency and low gate bias condition. The top resistive biasing has more benefit with the feature of phase noise than MOS current source since it can support the low-noise characteristics and large output swing. The LC-VCO designed in 130-nm CMOS process with 0.7-V supply voltage achieves phase noise of -116 dBc/Hz at 200 kHz offset with tuning range of 398 MHz to 408 MHz covering medical implant communication service (MICS) band.This paper presents a low-phase-noise LC voltage-controlled oscillator (LC-VCO) with top resistive biasing in subthreshold region. The subthreshold LC-VCO has low-power and low-phase-noise due to its high transconductance efficiency and low gate bias condition. The top resistive biasing has more benefit with the feature of phase noise than MOS current source since it can support the low-noise characteristics and large output swing. The LC-VCO designed in 130-nm CMOS process with 0.7-V supply voltage achieves phase noise of -116 dBc/Hz at 200 kHz offset with tuning range of 398 MHz to 408 MHz covering medical implant communication service (MICS) band.

关 键 词：VCO Resistive BIASING Current Source CMOS Integrated Circuit Phase Noise MICS Band 

分 类 号：TN7[电子电信—电路与系统]