Title
40 W Ka-Band Single and Dual Output GaN MMIC Power Amplifiers on SiC
Abstract
This paper presents single and dual output 40 W Ka-Band GaN MMIC PAs fabricated on 50 μm SiC using Qorvo's QGaN15 released process. The single output PA produces approximately 40 W of output power over the 27.5 - 29.5 GHz band and greater than 30W over the 26.5 - 31 GHz band with greater than 20 % PAE. A balanced PA architecture is selected resulting in return losses greater than 15 dB in fixture. The PA exhibits less than 0.3 dB power droop over a 5 ms pulse width. Design choices minimizing the performance degradation due to process variation are discussed. A dual output PA integrated with an input SPDT switch and output isolation circuitry is also detailed. This variant allowing the output signal to be routed to one of two selectable outputs without requiring large output switch devices is presented with preliminary measured results.
Year
DOI
Venue
2018
10.1109/BCICTS.2018.8551075
2018 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS)
Keywords
DocType
ISBN
single output PA,balanced PA architecture,dual output PA,output isolation circuitry,Ka-band GaN MMIC PA,MMIC power amplifiers,Qorvo QGaN15 released process,input SPDT switch,frequency 26.5 GHz to 31.0 GHz,size 50.0 mum,GaN,SiC
Conference
978-1-5386-6503-9
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Michael Roberg100.68
Thi Ri Mya Kywe200.34
Matthew Irvine300.34
Orlando Marrufo400.34
Sabyasachi Nayak500.34