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1. (WO2018197919) INVERTED DOHERTY POWER AMPLIFIER WITH LARGE RF AND INSTANTANEOUS BANDWIDTHS

Pub. No.:    WO/2018/197919    International Application No.:    PCT/IB2017/000639
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Tue Apr 25 01:59:59 CEST 2017
IPC: H03F 3/195
H03F 1/02
H03F 3/24
H03F 3/21
H03F 3/213
H03F 3/60
H03F 1/56
Applicants: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
Inventors: CASSOU, Christian
BOUISSE, Gerard
Title: INVERTED DOHERTY POWER AMPLIFIER WITH LARGE RF AND INSTANTANEOUS BANDWIDTHS
Abstract:
Apparatus and methods for an inverted Doherty amplifier operating at gigahertz frequencies are described. RF fractional bandwidth and signal bandwidth may be increased over a conventional Doherty amplifier configuration when impedance-matching components and an impedance inverter in an output network of the inverted Doherty amplifier are designed based on characteristics of the main and peaking amplifier and asymmetry factor of the amplifier.