High efficiency amplifiers having multiple amplification paths
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United States of America Patent
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Issued Date -
Apr 12, 2007
app pub date -
Aug 31, 2005
filing date -
Aug 31, 2005
priority date (Note) -
Abandoned
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Abstract
Described herein are representative embodiments of amplifiers having multiple amplification paths. In certain exemplary embodiments, the amplifiers are operated as linear power amplifiers, such as may be used in wireless communications systems. In one exemplary embodiment, an amplifier circuit is described comprising switchless amplification paths coupled in parallel to one another. In this exemplary embodiment, the amplification paths comprise amplifier sections that are activated substantially exclusively of one another.
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