Active compensation for power amplifier gain droop
First Claim
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1. 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.
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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.
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Citations
14 Claims
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1. A method for gain compensation comprising:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A circuit for gain compensation comprising:
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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. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification