Open AccessLow‐phase‐noise wideband VCO with optimised sub‐nH inductor
Author(s) -
Hu Ang,
Ren Zhixiong,
Zhang Kefeng,
Liu Lanqi,
Chen Xiaofei,
Liu Dongsheng,
Zou Xuecheng
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2015.1561
Subject(s) - voltage controlled oscillator , phase noise , dbc , wideband , inductor , materials science , electrical engineering , offset (computer science) , voltage , varicap , optoelectronics , chip , electronic engineering , engineering , physics , computer science , electrode , capacitance , quantum mechanics , programming language
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.