A RADIO FREQUENCY POWER AMPLIFIER
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United States of America Patent
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Issued Date -
Dec 14, 2017
app pub date -
Dec 30, 2015
filing date -
Dec 30, 2014
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Abstract
A power amplifier is described that includes a balanced amplifier arrangement having an input quadrant coupler and output quadrant coupler and two amplifiers, which may include or consist of single transistors, there between. The power amplifier also can provide a signal to an isolated port of the output coupler in order to provide impedance matching. This arrangement dispenses with the need for transistor matching networks at the output of the two amplifiers, which in turn enables the power amplifier to be operable over a wider frequency range as compared with a Doherty power amplifier.
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