Efficient Narrow Band Amplification Using Phase Amplifier
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United States of America Patent
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Issued Date -
Mar 20, 2008
app pub date -
Mar 20, 2007
filing date -
Sep 14, 2006
priority date (Note) -
Abandoned
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Abstract
An amplifier system having one or more signal paths. Each path includes a phase amplifier and a Class G Type amplifier. The phase amplifier receives an input signal bearing phase information. The Class G Type amplifier receives an envelope signal bearing amplitude information. The output of the Class G Type amplifier is coupled to provide the VCC reference for the phase amplifier. Thus, the output signal of the phase amplifier bears both phase and amplitude information. High frequency performance and high efficiency are obtained.
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