Dual drive Doherty power amplifier and systems and methods relating to same
AssigneeFalcomm, Inc.
InventorsEdgar Garay, Sanghoon Lee
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Abstract
Provided is a dual-drive based Doherty amplifier that includes a first power amplifier and a second power amplifier that is in parallel with the first power amplifier. The first power amplifier is configured to receive a first portion of a signal having a first phase, and the second power amplifier is configured to receive a second portion of the signal having a second phase that has a phase difference from the first phase. At least one of the first power amplifier or the second power amplifier includes a dual-drive power amplifier core.
Claims20
A dual-drive based Doherty amplifier, comprising:
- a power splitter;
- a first power amplifier coupled to a first output of the power splitter;
- and
- a second power amplifier that is coupled to a second output of the power splitter and that is in parallel with the first power amplifier,
- wherein at least one of the first power amplifier or the second power amplifier includes a dual-drive power amplifier core,
- the dual-drive power amplifier core includes:
- a transistor differential pair;
- and
- a multi-feed coupling network, wherein the multi-feed coupling network is configured to drive the dual-drive power amplifier core out-of-phase between a gate terminal and a source terminal of the transistor differential pair, and allow the source terminal and a drain terminal of the transistor differential pair to swing in-phase.
A dual-drive based Doherty amplifier, comprising:
- a first power amplifier;
- and
- a second power amplifier that is in parallel with the first power amplifier,
- wherein the first power amplifier is configured to receive a first portion of a signal having a first phase,
- wherein the second power amplifier receives a second portion of the signal having a second phase that has a phase difference from the first phase, and wherein at least one of the first power amplifier or the second power amplifier includes a dual-drive power amplifier core, and
- the dual-drive power amplifier core includes:
- a transistor differential pair;
- and
- a multi-feed coupling network, wherein the multi-feed coupling network is configured to drive the dual-drive power amplifier core out-of-phase between a gate terminal and a source terminal of the transistor differential pair, and allow the source terminal and a drain terminal of the transistor differential pair to swing in-phase.
Dependencies are inferred from the claim text.