Title :
A tail-feedback VCO with self-adjusting current modulation scheme
Author :
Narayanan, Aravind Tharayil ; Wei Deng ; Okada, Kenichi ; Matsuzawa, Akira
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
This paper proposes a tail-feedback VCO with adaptive current modulation scheme. The proposed current modulation scheme ensures robust startup conditions for the tail-feedback VCO. The proposed VCO is implemented in a 0.18-μm CMOS process. The measured phase noise is -119.3dBc/Hz at 1MHz offset with a power dissipation of 6.8mW at 4.6GHz.
Keywords :
CMOS integrated circuits; adaptive modulation; phase noise; voltage-controlled oscillators; CMOS process; adaptive current modulation scheme; frequency 4.6 GHz; phase noise; power 6.8 mW; robust startup conditions; self-adjusting current modulation scheme; size 0.18 mum; tail-feedback VCO; 1f noise; CMOS integrated circuits; Capacitance; Phase noise; Transistors; Voltage-controlled oscillators; CMOS; Tail feedback; VCO; adaptive bias; start-up;
Conference_Titel :
Microwave Conference (EuMC), 2014 44th European
Conference_Location :
Rome
DOI :
10.1109/EuMC.2014.6986532
