EL SEGUNDO, CA, Aug. 15, 2017 -- Today’s communication systems often use complex modulation techniques with peak-toaverage ratio (PAR) signals of 9 dB and higher, requiring power amplifiers (PAs) in these systems to operate below the power levels that would yield optimum power-added efficiency (PAE). This application note presents a modified three-level Doherty amplifier as an alternative to the conventional three-way Doherty amplifier. The operating principle of the modified amplifier, which produces good efficiency over the top 10 dB of operation, is explained and the design challenges faced with this type of amplifier are discussed.
Where: The application note can be found at http://www.awrcorp.com/resource-library/designingmodified-three-level-doherty-amplifier-use-next-generation-communication.
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