Tim Canning

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A new design method for Doherty-Chireix combined operation is proposed. Only one of the two amplifiers operates at the low power region like a Doherty amplifier, while both amplifiers are operating as a Chireix outphasing amplifier at the high power region, taking advantage of the high efficiency region of each operating mode. Quasi-envelope efficiency of(More)
A new outphasing signal splitter for a radio frequency (RF) single input Chireix power amplifier without using digital signal processing is introduced. Input signal phase control versus power for outphasing operation is obtained by using only a linear circuit, exploiting the input impedance variation of non-ideal devices. A 52.6 dBm peak output power, 6 dB(More)
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