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A switched-capacitor power amplifier for EER/polar transmitters

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4 Author(s)
Sang-Min Yoo ; Univ. of Washington, Seattle, WA, USA ; Walling, J.S. ; Eum Chan Woo ; Allstot, D.J.

This paper introduces an EER 90 nm CMOS experimental prototype switched capacitor power amplifier (SCPA) that achieves high output power, efficiency and linear output-power control using a switched-capacitor-based switching PA without the use of a supply modulator. While amplifying 64-QAM OFDM modulation with a 20 MHz signal bandwidth it achieves an average output power of 17.7 dBm, an average PAE of 32.1%, and an EVM of 2.9%.

Published in:

Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2011 IEEE International

Date of Conference:

20-24 Feb. 2011