Invention Grant
- Patent Title: High dynamic range AMAM predistortion
- Patent Title (中): 高动态范围AMAM预失真
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Application No.: US13760184Application Date: 2013-02-06
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Publication No.: US09258081B2Publication Date: 2016-02-09
- Inventor: Dennis Mahoney , Khurram Muhammad
- Applicant: MStar Semiconductor, Inc.
- Applicant Address: TW Hsinchu Hsien
- Assignee: MStar Semiconductor, Inc.
- Current Assignee: MStar Semiconductor, Inc.
- Current Assignee Address: TW Hsinchu Hsien
- Agency: Edell, Shapiro & Finnan, LLC
- Main IPC: H04K1/02
- IPC: H04K1/02 ; H04L1/00 ; H03F1/32 ; H04L27/36
Abstract:
A predistortion function is evaluated with in-phase (I) and quadrature (Q) data words as arguments, while additive I and Q data words are generated in accordance with a comparison of the I and Q data words with a full scale value that generates maximum current in a digital power amplifier. The additive I and Q data words are added to the computed I and Q data words to produce predistorted I and Q data words. The predistorted I and Q data words are provided in a sequence to the digital power amplifier, which generates a corresponding radio-frequency (RF) analog signal.
Public/Granted literature
- US20140219391A1 HIGH DYNAMIC RANGE AMAM PREDISTORTION Public/Granted day:2014-08-07
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