Invention Grant
- Patent Title: Broadband, high-efficiency, non-modulating power amplifier architecture
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Application No.: US16639105Application Date: 2018-08-14
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Publication No.: US11190143B2Publication Date: 2021-11-30
- 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: Thomas | Horstemeyer, LLP.
- Agent Jason M. Perilla
- Priority: FR1757679 20170814
- International Application: PCT/US2018/046754 WO 20180814
- International Announcement: WO2019/036499 WO 20190221
- Main IPC: H03F1/02
- IPC: H03F1/02 ; H03F1/08 ; H03F1/42 ; H03F3/21 ; H03F3/213

Abstract:
Apparatus and methods for a no-load-modulation power amplifier are described. No-load-modulation power amplifiers can comprise 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 essentially no modulation of its load between the power amplifier's fully-on and fully backed-off states. The power amplifiers can operate in symmetric and asymmetric modes. Improvements in bandwidth and drain efficiency over conventional Doherty amplifiers are obtained. Further improvements can be obtained by combining signals from the amplifiers with hybrid couplers.
Public/Granted literature
- US20200212847A1 BROADBAND, HIGH-EFFICIENCY, NON-MODULATING POWER AMPLIFIER ARCHITECTURE Public/Granted day:2020-07-02
Information query
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