Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Feed-forward amplifier
In a feed-forward amplifier a signal power dynamic range compressing circuit for compressing the power dynamic range of the input signal to the feed-forward amplifier is provided in a distortion detecting loop at the input side of a main amplifier, and the output backoff of the main amplifier is reduced to thereby achieve high-efficiency amplification of the feed-forward amplifier.
NTT DoCoMo, Inc.
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inventional additional inventional additional
Yasunori Toshio
Suzuki Nojima