Title :
Extending the bandwidth of low-noise microwave amplifier through digital assist
Author :
Stewart, Darryl ; Saavedra, Carlos E.
Author_Institution :
Queen´s Univ., Kingston, ON, Canada
Abstract :
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.
Keywords :
UHF amplifiers; low noise amplifiers; microwave amplifiers; network topology; LNA; frequency 1 GHz to 8.25 GHz; gate bias voltages; low-noise amplifier; microwave amplifier; multistage topology;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.0176
