Hear Ye, Hear Ye
Content is copyright of company represented,
but page format is my copyright - do not distribute it.
El Segundo, California – August 15, 2017
Today's communication systems often use complex modulation
techniques with peak-to-average 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.
The application note can be found at
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Posted August 16, 2017