Title :
A design of low power 70GHz CMOS VCO for wireless communication system
Author :
Jongsuk Lee ; Yong Moon
Author_Institution :
Dept. of Electron. Eng., Soongsil Univ., Seoul, South Korea
Abstract :
A 70GHz Voltage Controlled Oscillatior (VCO) for wireless communication system is proposed by 0.11μm CMOS process. The VCO is designed by a center-tapped spiral inductor and NMOS cross-coupled structure and includes output buffer. The designed VCO oscillates from 69.95 to 71.62GHz and this frequency band is proper to wireless communication system in cars. The measured output power is -22.9dBm and phase noise is -78.67dBc/Hz at 1MHz offset at 71.18GHz. The power consumption of the VCO core is only 2.6mW at the supply voltage of 1.2V. VCO shows good figure of merit (FOM) of -171.57dBc/Hz.
Keywords :
CMOS integrated circuits; automotive electronics; integrated circuit design; integrated circuit noise; low-power electronics; mobile radio; phase noise; voltage-controlled oscillators; CMOS process; NMOS cross-coupled structure; cars; center-tapped spiral inductor; frequency 69.95 GHz to 71.62 GHz; frequency 70 GHz; low-power CMOS VCO design; output buffer; phase noise; power 2.6 mW; power consumption; size 0.11 mum; supply voltage; voltage 1.2 V; voltage-controlled oscillatior; wireless communication system; CMOS integrated circuits; Frequency measurement; Lead; MOS devices; Moon; Power measurement; Voltage-controlled oscillators; CMOS; Center-tapped inductor; PLL(Phase Locked Loop); VCO(Voltage Controlled Oscillator); Wireless communication system;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2014 IEEE International Conference on
DOI :
10.1109/EDSSC.2014.7061164
