Title :
A 44-49 GHz low phase noise CMOS voltage-controlled oscillator with 10-dBm output power and 16.1% efficiency
Author :
Che-Chen Lee ; Shu-Yan Huang ; Hong-Yeh Chang
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Jhongli, Taiwan
Abstract :
In this paper, we present a monolithic wide tuning range low phase noise voltage-controlled oscillator (VCO) with high output power and high efficiency in 90 nm CMOS process. The proposed VCO is based on a cascode amplifier with a π-feedback network. The propose VCO achieves a maximum output power of 10.6 dBm, and a maximum efficiency of 16.1%, when the dc supply voltage is 2.4 V with a current consumption of 27 mA. The measured phase noise at 1-MHz offset is -104.6 dBc/Hz. The oscillation frequency is from 43.8 to 49.1 GHz. The chip size of the VCO is 514 × 554 μm2. This work has the highest efficiency and the highest output power among all the reported MMW CMOS VCOs without output buffer amplifier.
Keywords :
CMOS analogue integrated circuits; feedback amplifiers; feedback oscillators; integrated circuit noise; millimetre wave amplifiers; millimetre wave integrated circuits; phase noise; voltage-controlled oscillators; π-feedback network; MMW CMOS VCO; cascode amplifier; current 27 mA; efficiency 16.1 percent; frequency 43.8 GHz to 49.1 GHz; low phase noise CMOS voltage-controlled oscillator; monolithic wide tuning range low phase noise VCO; output buffer amplifier; size 90 nm; voltage 2.4 V; CMOS integrated circuits; CMOS technology; Topology; Voltage-controlled oscillators; CMOS; low phase noise; millimeter-wave; monolithic microwave integrated circuit (MMIC); voltage controlled oscillator;
Conference_Titel :
Microwave Symposium (IMS), 2014 IEEE MTT-S International
Conference_Location :
Tampa, FL
DOI :
10.1109/MWSYM.2014.6848346
