Back to results
US 11,146,215 B2Granted
Doherty power amplifier, controlling method and device
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorZhancang Wang
Life of this patent
Estimating the term…
Abstract
Disclosed are a Doherty power amplifier (2), a controlling method and a device. In the Doherty power amplifier (2), the even order harmonic components can be fed to the drain of the amplifier to realize even order harmonic modulation. The even order harmonic components have higher power level than the odd order harmonic components, therefore, higher efficiency could be achieved.
Claims20
A Doherty Power Amplifier comprising:
- a first amplifier;
- a second amplifier;
- a first transmission device configured to feed first even order harmonic components generated at a drain of the first amplifier to a drain of the second amplifier, and then short the first even order harmonic components to ground;
- and
- a second transmission device configured to feed second even order harmonic components generated at the drain of the second amplifier to the drain of the first amplifier, and then short the second even order harmonic components to ground.
2 more elements
A method at a Doherty Power Amplifier that comprises a first amplifier and a second amplifier, the method comprising:
- feeding first even order harmonic components generated at a drain of the first amplifier to a drain of the second amplifier, and then shorting the first even order harmonic components to ground;
- and
- feeding second even order harmonic components generated at the drain of the second amplifier to the drain of the first amplifier, and then shorting the second even order harmonic components to ground.
A device comprising:
- a Doherty Power Amplifier, wherein the Doherty Power Amplifier comprises:
- a first amplifier;
- a second amplifier;
- a first transmission device configured to feed first even order harmonic components generated at a drain of the first amplifier to a drain of the second amplifier, and then short the first even order harmonic components to ground;
- and
- a second transmission device configured to feed second even order harmonic components generated at the drain of the second amplifier to the drain of the first amplifier, and then short the second even order harmonic components to ground.
3 more elements
Dependencies are inferred from the claim text.