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An 80‐100 GHz VCO using auxiliary cross‐coupled pair and push‐push topology in 0.18‐μm CMOS
Author(s) -
Huang JuiChi,
Wang Sen,
Tsai TingYi
Publication year - 2019
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31520
Subject(s) - dbc , voltage controlled oscillator , phase noise , cmos , electrical engineering , offset (computer science) , topology (electrical circuits) , figure of merit , electronic engineering , voltage , physics , materials science , engineering , optoelectronics , computer science , programming language
This letter presents a wide‐tuning‐range CMOS VCO using auxiliary cross‐coupled pair and push‐push topology at W‐band. The auxiliary cross‐coupled pair parallel with the novel push‐push VCO not only compensates resistive losses but also achieves a wide frequency tuning range. The VCO implemented by a standard 0.18‐μm CMOS process consumes a dc power of 36.7 mW with the supply voltage of 1.8 V. The measured output power is −28 dBm from 80.2 GHz to 99.6 GHz. That is, the VCO exhibits a frequency tuning range of 21.7%. The resulting phase noise is −94.6 dBc/Hz at 10 MHz offset frequency and the figure of merit with tuning range (FOM T ) is −165.6 dBc/Hz.