Invention Grant
- Patent Title: Enhanced doherty amplifier
- Patent Title (中): 增强型多功能放大器
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Application No.: US14268007Application Date: 2014-05-02
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Publication No.: US09564864B2Publication Date: 2017-02-07
- Inventor: Raymond Sydney Pengelly
- Applicant: Cree, Inc.
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agent Anthony J. Josephson
- Main IPC: H03F3/68
- IPC: H03F3/68 ; H03F3/20 ; H03F3/189 ; H03F1/02 ; H03F1/42 ; H03F3/21

Abstract:
The disclosure relates to an enhanced Doherty amplifier that provides significant performance improvements over conventional Doherty amplifiers. The enhanced Doherty amplifier includes a power splitter, combining node, a carrier path, and a peaking path. The power splitter is configured to receive an input signal and split the input signal into a carrier signal provided at a carrier splitter output and a peaking signal provided at a peaking splitter output. The carrier path includes carrier power amplifier circuitry, a carrier input network coupled between the carrier splitter output and the carrier power amplifier circuitry, and a carrier output network coupled between the carrier power amplifier circuitry and the Doherty combining node. The peaking path includes peaking power amplifier circuitry, a peaking input network coupled between the peaking splitter output and the peaking power amplifier circuitry, and a carrier output network coupled between the power amplifier circuitry and the Doherty combining node.
Public/Granted literature
- US20140240039A1 ENHANCED DOHERTY AMPLIFIER Public/Granted day:2014-08-28
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