Title :
Low-phase-noise wideband VCO with optimised sub-nH inductor
Author :
Ang Hu ; Zhixiong Ren ; Kefeng Zhang ; Lanqi Liu ; Xiaofei Chen ; Dongsheng Liu ; Xuecheng Zou
Author_Institution :
Sch. of Opt. & Electron. Inf., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A wideband voltage-controlled oscillator (VCO) covering 2.24-4.95 GHz for multi-standard wireless applications is presented. Realised in TSMC 180 nm RFCMOS process, the VCO provides a phase noise <;-124.2 dBc/Hz at a 1 MHz offset in the whole frequency range, while drawing 10 and 18 mA at 4.95and 2.24 GHz from a 1.8 V supply, respectively. The achieved tuning range is 75% and the core chip area is 0.51 mm2.
Keywords :
CMOS integrated circuits; UHF oscillators; inductors; microwave oscillators; voltage-controlled oscillators; TSMC RF CMOS process; current 10 mA; current 18 mA; frequency 2.24 GHz to 4.95 GHz; low-phase-noise wideband VCO; multistandard wireless applications; sub-nH inductor; voltage 1.8 V; voltage-controlled oscillator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2015.1561
