Study on Dynamic Body Bias Controls of RF CMOS Cascode Power Amplifier

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This letter presents a highly linear cascode CMOS power amplifier (PA) that uses dynamic body linearizers based on envelope signal injection to the bodies of the common source and common gate power transistors. The linearizers allow the PA to have optimum AM-AM and AM-PM, which reduces the nonlinear distortions significantly. The two-stage PA is fabricated using a 0.18-mu m CMOS process with a printed circuit board output transformer. At 1.85 GHz, it delivers 27.7-dBm output power with 41.3% power added efficiency under a -33-dBc ACLR(E-UTRA) and a 4.7% error vector magnitude using long term evolution (LTE) signal.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2018-08
Language
English
Article Type
Article
Citation

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.28, no.8, pp.705 - 707

ISSN
1531-1309
DOI
10.1109/LMWC.2018.2849209
URI
http://hdl.handle.net/10203/245398
Appears in Collection
EE-Journal Papers(저널논문)
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