Active compensation for power amplifier gain droop
AssigneeMediatek Inc.
InventorsKeng Leong Fong, YuenHui Chee
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Abstract
Some embodiments relate to a method and circuit for gain compensation. The method includes detecting a strength of an output signal generated by a power amplifier of a transmitter in response to a commanded transmission signal. The method also includes comparing the detected strength of the output signal to a delayed version of a detected strength of the commanded transmission signal to obtain an error signal. The method further includes compensating for gain drop of the output signal by adjusting a gain of the transmitter based on the error signal.
Claims14
A method for gain compensation comprising:
- (A) detecting a strength of an output signal generated by a power amplifier of a transmitter in response to a commanded transmission signal;
- (B) comparing the detected strength of the output signal to a detected strength of the commanded transmission signal to obtain an error signal;
- (C) compensating for gain drop of the output signal by adjusting a gain of the transmitter based on the error signal,
- wherein (A), (B) and (C) are performed during a transmission of a single packet.
A circuit for gain compensation comprising:
- circuitry configured to:
- (A) detect a strength of an output signal generated by a power amplifier of a transmitter in response to a commanded transmission signal;
- (B) compare the detected strength of the output signal to a detected strength of the commanded transmission signal to obtain an error signal;
- (C) compensate for gain drop of the output signal by adjusting a gain of the transmitter based on the error signal,
- wherein (A), (B) and (C) are performed during a transmission of a single packet.
Dependencies are inferred from the claim text.