Open AccessCMOS 45 GHz vector modulator with gain/phase correction through calibration
Author(s) -
Juntunen E.,
Dawn D.,
Laskar J.,
Papapolymerou J.
Publication year - 2013
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.2012.4001
Subject(s) - cmos , calibration , signal (programming language) , electronic engineering , physics , materials science , computer science , engineering , quantum mechanics , programming language
A 45 GHz vector modulator designed in 45 nm SOI CMOS is presented along with an open‐loop calibration technique for gain/phase correction. The continuous 360° vector modulator consists of a passive quadrature signal generation network followed by a Gilbert cell modulator. The simple, open‐loop calibration procedure results in RMS gain and phase errors less than 0.5 dB and 5°, respectively. The circuit consumes 18 mW of DC power from a 1 V supply.