CASCADED CONVERGED POWER AMPLIFIER
First Claim
1. Circuitry comprising:
- a first radio frequency (RF) power amplifier (PA) stage adapted to provide a first RF output signal;
a second RF PA stage; and
an alpha RF switch adapted to;
during a first alpha mode, forward the first RF output signal to the second RF PA stage, such that the first RF PA stage is further adapted to function as a driver stage and the second RF PA stage is adapted to function as a final stage; and
during one of a plurality of alpha modes, forward the first RF output signal to provide a corresponding one of a group of alpha transmit signals, such that the first RF PA stage is further adapted to function as a final stage and the first alpha mode is not one of the plurality of alpha modes.
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Accused Products
Abstract
A first radio frequency (RF) power amplifier (PA) stage, a second RF PA stage, and an alpha RF switch are disclosed. The first RF PA stage provides a first RF output signal. During a first alpha mode, the alpha RF switch forwards the first RF output signal to the second RF PA stage, such that the first RF PA stage functions as a driver stage and the second RF PA stage functions as a final stage. However, during one of a group of alpha modes, the alpha RF switch forwards the first RF output signal to provide a corresponding one of a group of alpha transmit signals, such that the first RF PA stage functions as a final stage. Further, the first alpha mode is not one of the group of alpha modes.
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Citations
28 Claims
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1. Circuitry comprising:
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a first radio frequency (RF) power amplifier (PA) stage adapted to provide a first RF output signal; a second RF PA stage; and an alpha RF switch adapted to; during a first alpha mode, forward the first RF output signal to the second RF PA stage, such that the first RF PA stage is further adapted to function as a driver stage and the second RF PA stage is adapted to function as a final stage; and during one of a plurality of alpha modes, forward the first RF output signal to provide a corresponding one of a group of alpha transmit signals, such that the first RF PA stage is further adapted to function as a final stage and the first alpha mode is not one of the plurality of alpha modes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method comprising:
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selecting one of a group consisting of a first alpha mode and a plurality of alpha modes; providing a first RF output signal using a first radio frequency (RF) power amplifier (PA) stage; during the first alpha mode, forwarding the first RF output signal to a second RF PA stage, such that the first RF PA stage functions as a driver stage and the second RF PA stage functions as a final stage; and during one of the plurality of alpha modes, forwarding the first RF output signal to provide a corresponding one of a group of alpha transmit signals, such that the first RF PA stage functions as a final stage and the first alpha mode is not one of the plurality of alpha modes.
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Specification