Invention Grant
- Patent Title: Low-load-modulation power amplifier
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Application No.: US16593072Application Date: 2019-10-04
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Publication No.: US11705869B2Publication Date: 2023-07-18
- Inventor: Bi Ngoc Pham , Gerard Bouisse
- Applicant: MACOM Technology Solutions Holdings, Inc.
- Applicant Address: US MA Lowell
- Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
- Current Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
- Current Assignee Address: US MA Lowell
- Agency: Perilla Knox & Hildebrandt LLP
- Agent Jason M. Perilla
- Priority: FR 59231 2018.10.05
- Main IPC: H03F1/02
- IPC: H03F1/02 ; H02M7/48 ; H03F3/19 ; H03F3/21

Abstract:
Apparatus and methods for a low-load-modulation power amplifier are described. Low-load-modulation power amplifiers can include multiple amplifiers connected in parallel to amplify a signal that has been divided into parallel circuit branches. One of the amplifiers can operate as a main amplifier in a first amplification class and the remaining amplifiers can operate as peaking amplifiers in a second amplification class. The main amplifier can see low modulation of its load between the power amplifier's fully-on and fully backed-off states. Improvements in bandwidth and drain efficiency over conventional Doherty amplifiers are obtained.
Information query
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