Invention Grant
- Patent Title: Digital pre-distortion systems in transmitters
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Application No.: US13940263Application Date: 2013-07-12
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Publication No.: US09608676B2Publication Date: 2017-03-28
- Inventor: Dong Chen
- Applicant: ANALOG DEVICES TECHNOLOGY
- Applicant Address: BM Hamilton
- Assignee: ANALOG DEVICES GLOBAL
- Current Assignee: ANALOG DEVICES GLOBAL
- Current Assignee Address: BM Hamilton
- Agency: Patent Capital Group
- Main IPC: H04B1/04
- IPC: H04B1/04 ; H03F1/32 ; H03F3/195 ; H03F3/24

Abstract:
Various digital pre-distortion systems for use in transmitters are disclosed. The digital pre-distortion system comprises an observing path, which performs either undersampling or radio frequency sampling of the output of a power amplifier. Undersampling may be performed at a rate, which causes aliasing to occur in the undersampled frequency domain. Both undersampling and radio frequency sampling reduces the complexity of the digital pre-distortion system by removing any down mixing modules or anti-aliasing modules, while maintaining reasonable performance of the digital pre-distortion systems.
Public/Granted literature
- US20150016567A1 DIGITAL PRE-DISTORTION SYSTEMS IN TRANSMITTERS Public/Granted day:2015-01-15
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