Title
A transformer combined quadrature switched capacitor power amplifier in 65nm CMOS
Abstract
This paper presents a transformer combined, quadrature switched-capacitor power amplifier (Q-SCPA) that amplifies in-phase (I) and quadrature (Q) signals separately and combines them in a power-combining transformer. The unit SCPA utilizes a class-G dual-supply architecture to improve efficiency at backoff. This counteracts losses associated with the signal combination. Unlike polar/EER counterparts, the Q-SCPA requires no wideband phase modulator or delay matching circuitry. The Q-SCPA delivers a peak (average) output power of 26 (18.5) dBm with a peak (average) PAE of 22% (18%) for a 20 MHz, 64 QAM OFDM signal with a simulated EVM of 4 % in the S-band.
Year
DOI
Venue
2016
10.1109/NEWCAS.2016.7604790
2016 14th IEEE International New Circuits and Systems Conference (NEWCAS)
Keywords
Field
DocType
Class-D PA,Digital PA,EER,Quadrature PA,Polar PA,Switched-Capacitor PA,SCPA
Wideband,Quadrature amplitude modulation,Capacitor,Computer science,Transformer,Electronic engineering,CMOS,Electrical engineering,Orthogonal frequency-division multiplexing,Amplifier,Quadrature booster
Conference
ISSN
ISBN
Citations 
2472-467X
978-1-4673-8901-3
0
PageRank 
References 
Authors
0.34
6
5
Name
Order
Citations
PageRank
V. Aparin1455.64
jeremy d dunworth2314.56
Lee Seward3151.27
Wen Yuan4345.20
Jeffrey S. Walling516319.89