Invention Grant
- Patent Title: Digital pre-distortion for an AB amplifier
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Application No.: US15957061Application Date: 2018-04-19
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Publication No.: US10530310B2Publication Date: 2020-01-07
- Inventor: Hang Jin , John T. Chapman
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Merchant & Gould P.C.
- Main IPC: H03F1/32
- IPC: H03F1/32 ; H03F1/56 ; H03F3/19 ; H03F3/21 ; H04B1/04

Abstract:
Digital pre-distortion may be provided. First, a radio frequency (RF) domain distortion correcting signal and a base band (BB) domain distortion correcting signal may be initialized. Then the RF domain distortion correcting signal may be generated from an input signal. The generated RF domain distortion correcting signal may correspond to an amplifier. Next, the BB domain distortion correcting signal may be generated from the input signal. The generated BB domain distortion correcting signal may correspond to the amplifier. Then the RF domain distortion correcting signal and the BB domain distortion correcting signal may be combined to form a hybrid distortion correcting signal. The hybrid distortion correcting signal may then be provided to input matching circuitry feeding the amplifier.
Public/Granted literature
- US20190326861A1 DIGITAL PRE-DISTORTION FOR AN AB AMPLIFIER Public/Granted day:2019-10-24
Information query
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