A Highly Linear Combining CMOS PA with Adaptive Auxiliary Amplifier Control

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A highly linear and efficient CMOS power amplifier (PA) with adaptive auxiliary amplifier control (AAAC) is presented, which makes the common-gate transistor of an auxiliary amplifier operate in the saturation region for overall output powers. This leads to decrease the AM-PM distortion by reducing the variation of the output susceptance. In addition, the AAAC reduces the current consumption for all power ranges by controlling the auxiliary amplifier. The PA is fully integrated with all matching networks in a 0.18 m CMOS process. It was measured with an 802.11n 64-QAM MCS7 signal. It achieved a maximum average power of 19.9 dBm with a power-added efficiency of 28% under an error-vector magnitude of -25 dB.
Publisher
INST ENGINEERING TECHNOLOGY-IET
Issue Date
2018-07
Language
English
Article Type
Article
Keywords

POWER-AMPLIFIER

Citation

ELECTRONICS LETTERS, v.54, no.15, pp.955 - 957

ISSN
0013-5194
DOI
10.1049/el.2018.1162
URI
http://hdl.handle.net/10203/245206
Appears in Collection
EE-Journal Papers(저널논문)
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