Invention Grant
US09385666B2 Power amplifier with wide band AM-AM feedback and digital pre-distortion
有权
功率放大器具有宽带AM-AM反馈和数字预失真
- Patent Title: Power amplifier with wide band AM-AM feedback and digital pre-distortion
- Patent Title (中): 功率放大器具有宽带AM-AM反馈和数字预失真
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Application No.: US14558805Application Date: 2014-12-03
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Publication No.: US09385666B2Publication Date: 2016-07-05
- Inventor: Sai-Wang Tam , Alden Chee Ho Wong , Yuan Lu , David M. Signoff , Li Lin
- Applicant: Marvell World Trade LTD.
- Applicant Address: BB St. Michael
- Assignee: Marvell World Trade LTD.
- Current Assignee: Marvell World Trade LTD.
- Current Assignee Address: BB St. Michael
- Main IPC: H03G3/20
- IPC: H03G3/20 ; H03F1/32 ; H03F1/02 ; H03F3/21
Abstract:
A system including an amplifier circuit configured to amplify an input and generate an output, a bias circuit configured to bias the amplifier circuit, and a feedback circuit configured to generate feedback based on the input and the output, and to adjust the bias of the amplifier circuit based on the feedback to reduce amplitude nonlinearity in the output. A digital pre-distortion circuit is configured to reduce phase nonlinearity in the output.
Public/Granted literature
- US20150162882A1 POWER AMPLIFIER WITH WIDE BAND AM-AM FEEDBACK AND DIGITAL PRE-DISTORTION Public/Granted day:2015-06-11
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