Open AccessExtending the bandwidth of low‐noise microwave amplifier through digital assist
Author(s) -
Stewart D.,
Saavedra C. E.
Publication year - 2014
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.2014.0176
Subject(s) - low noise amplifier , bandwidth (computing) , electronic engineering , noise figure , amplifier , amplifier figures of merit , electrical engineering , effective input noise temperature , microwave , computer science , engineering , telecommunications
The 3 dB bandwidth of a low‐noise amplifier (LNA) is increased by 23% from a range of 1–6.7 GHz to a range of 1–8.25 GHz through digital assist. The LNA has a multi‐stage topology and the gate bias voltages are dynamically optimised in real‐time to obtain the best gain and noise figure as a function of the signal input frequency.