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New type of class A/F amplifier MMIC for use in commercial PCS multiple modulation format base station power amplification

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5 Author(s)
D. Helms ; Celwave, Corvallis, OR, USA ; M. Mokalla ; N. Vladimirsky ; M. Testa
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A modified GaAs FET class-A/F amplifier provided greatly improved linear power in concurrent multiple modulation formats. The class A/F structure suppresses the 3rd and 5th order products more than 15.8 dB and 13 dB respectively, over a typical class A/F amplifier and 17.8 dB reduced 3rd order products verses a straight class A amplifier. The amplifier has 0.3 dB gain flatness over a 10% bandwidth.

Published in:

Radio Frequency Integrated Circuits (RFIC) Symposium, 1998 IEEE

Date of Conference:

11-8 June 1998