Title :
A 6-41 GHz Distributed Amplifier with Supply Scaling for Efficiency Enhancement
Author :
Cooper S. Levy;James F. Buckwalter
Author_Institution :
Univ. of California San Diego, La Jolla, CA, USA
Abstract :
This work explores wideband efficiency enhancement techniques for distributed amplifiers. The concept of a supply-scaled distributed amplifier (SSDA) utilizing a band-pass distributed amplifier with multiple supply voltages is discussed. A prototype amplifier is fabricated in a 0.15μm GaN on a 2mil SiC process. The chip is measured and shows a significant improvement in drain efficiency and power added efficiency with supply scaling.
Keywords :
"Distributed amplifiers","Power transmission lines","Transmission line measurements","Impedance","Power amplifiers","Gallium nitride","Semiconductor device measurement"
Conference_Titel :
Compound Semiconductor Integrated Circuit Symposium (CSICS), 2015 IEEE
DOI :
10.1109/CSICS.2015.7314472
