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A Design of CMOS Class-E Power Amplifier with Phase Correction for Envelope Elimination and Restoration (EER)/Polar Systems
Wen-An TSOU Wen-Shen WUEN Kuei-Ann WEN
IEICE TRANSACTIONS on Electronics
Publication Date: 2010/01/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: BRIEF PAPER
Category: Electronic Circuits
envelope elimination and restoration (EER), polar system, class-E power amplifier, orthogonal frequency division multiplexing (OFDM),
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A circuit technique to correct Vdd/PM distortion and improve efficiency as supply modulation of cascode class-E PAs has been proposed. The experimental result shows that the phase distortion can be improved from 20 degrees to 5 degrees. Moreover, a system co-simulation result demonstrated that the EVM can be improved from -17 dB to -19 dB.