Abstract:A three-way Doherty power amplifier targeting sub 6-GHz. Three 6W GaN transistors are used to design an 18W peak power with an 8.5 dB back-off efficiency. The amplifier achieved an efficiency of 55%, 63% and 80% at 8.5, 6, and 0 dB respectively from the peak power. The designed amplifier target 3.4-3.8 GHz band with a gain of 13 dB over the band. In addition, the amplifier was examined for different VSWRs taking into account the effect of impedance changing of antenna due to beamforming. There was an average o… Show more
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