MULTI-BAND POWER AMPLIFIER MODULE FOR WIRELESS COMMUNICATION DEVICES
First Claim
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1. A multi-band power amplifier module, comprising:
- a step gain terminal configured to receive a first step gain signal and a second step gain signal;
a first power amplifier configured to amplify a first input radio frequency signal in a first frequency band in response to a first bias control signal to produce a first output radio frequency signal;
a first bias circuit configured to output the first bias control signal in response to the first step gain signal at the step gain terminal;
a second power amplifier configured to amplify a second input radio frequency signal in a second frequency band in response to a second bias control signal to produce a second output radio frequency signal; and
a second bias circuit configured to output the second bias control signal in response to the second step gain signal at the step gain terminal.
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Abstract
A multi-band power amplifier module includes a first power amplifier that amplifies a first input radio frequency signal in a first frequency band in response to a first bias control signal. A second power amplifier amplifies a second input radio frequency signal in a second frequency band in response to a second bias control signal. A first bias control circuit produces the first bias control signal and a second bias control circuit produces the second bias control signal in response to step gain signals received at a step gain terminal.
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Citations
21 Claims
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1. A multi-band power amplifier module, comprising:
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a step gain terminal configured to receive a first step gain signal and a second step gain signal;
a first power amplifier configured to amplify a first input radio frequency signal in a first frequency band in response to a first bias control signal to produce a first output radio frequency signal;
a first bias circuit configured to output the first bias control signal in response to the first step gain signal at the step gain terminal;
a second power amplifier configured to amplify a second input radio frequency signal in a second frequency band in response to a second bias control signal to produce a second output radio frequency signal; and
a second bias circuit configured to output the second bias control signal in response to the second step gain signal at the step gain terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A multi-band power amplifier module, comprising:
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a step gain terminal configured to receive a step gain signal;
a power sensing terminal configured to receive a first power sensing signal and a second power sensing signal;
a first power amplifier configured to amplify a first input radio frequency signal in a first frequency band in response to the step gain signal to produce a first output radio frequency signal;
a first power sensing circuit configured to produce the first power sensing signal at the power sensing terminal;
a second power amplifier configured to amplify a second input radio frequency signal in a second frequency band in response to the step gain signal to produce a second output radio frequency signal;
a second power sensing circuit configured to produce the second power sensing signal at the power sensing terminal;
a first bias control circuit configured to output a first bias control signal in response to the step gain signal at the step gain terminal wherein the first power amplifier is configured to amplify the first input radio frequency signal in the first frequency band in response to the first bias control signal; and
a second bias control circuit configured to output the second bias control signal in response to the step gain signal at the step gain terminal, wherein the second power amplifier is configured to amplify the second input radio frequency signal in the second frequency band in response to the second bias control signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. (canceled)
Specification