Distributed power amplifier circuit
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United States of America Patent
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Apr 25, 2017
Grant Date -
Jan 7, 2016
app pub date -
Feb 19, 2014
filing date -
Feb 25, 2013
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Abstract
A distributed power amplifier circuit is disclosed. The distributed power amplifier circuit comprises an amplifier arrangement comprising a plurality of sub amplifiers, each having an output port for outputting an output signal of the sub-amplifier and an output combiner network for combining the output signals from the sub amplifiers. The output combiner network includes, for each sub amplifier, an associated auto transformer operatively connected to the output port of the sub amplifier for receiving the output signal of the sub amplifier. The auto transformers each have a first interconnection terminal and a second interconnection terminal. The auto transformers are operatively connected in series via the interconnection terminals, thereby forming a chain of auto transformers having a first end and a second end, wherein the first end is arranged to be connected to an antenna.
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