A 2.3GHz linearized CMOS power amplifier with AM-AM and AM-PM distortion correction

Hyun Jin Yoo; Dong Hyun Baek; Kuk Jin Chun; Yun Seong Eo

doi:10.1587/elex.7.1602

LETTER

A 2.3GHz linearized CMOS power amplifier with AM-AM and AM-PM distortion correction

Hyun Jin Yoo, Dong Hyun Baek, Kuk Jin Chun, Yun Seong Eo

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Keywords: CMOS PA, linearized PA, AM-AM/AM-PM distortion correction

JOURNAL FREE ACCESS

2010 Volume 7 Issue 21 Pages 1602-1607

DOI https://doi.org/10.1587/elex.7.1602

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Abstract

A linearized 2.3GHz CMOS power amplifier with AM-AM and AM-PM distortion correction is presented. The varactors are used at the driver amplifier load to correct the phase distortion and gate bias control of the PA to compensate the amplitude distortion. The proposed CMOS PA has been implemented in 0.13µm CMOS technology. The measured results show that P_1dB is increased 1.6dB and PAE is improved from 5.5% to 9% at the condition of -28dB EVM, respectively.

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