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AssigneeSiGe Semiconductor Inc.
InventorsAlan J. A. Trainor, Grant Darcy Poulin, Craig Joseph Christmas
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A system and method improve amplifier efficiency of operation relative to that of an amplifying transistor with a fixed bias current. A power level representing a level of transmission power from an amplifier circuit and an indicator of amplifier circuit operation are provided. The indicator is at least one of channel, channel bandwidth, out-of band spectral requirements, spectral mask requirements, error vector magnitude, modulation rate, and modulation type. The amplifying transistor is biased with a bias current that is determined based at least in part on the power level and the indication where the bias current is different for channels at an edge of a channel band than for channels nearer a center of the channel band.
A method comprising:
A method comprising:
A method comprising:
Dependencies are inferred from the claim text.