Invention Grant
US08619906B2 Look up table-based sum predistorter for power amplifification with concurrent dual band inputs
有权
查找基于表的总和预失真器，进行功率放大并发双频输入
- Patent Title: Look up table-based sum predistorter for power amplifification with concurrent dual band inputs
- Patent Title (中): 查找基于表的总和预失真器，进行功率放大并发双频输入
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Application No.: US13541972Application Date: 2012-07-05
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Publication No.: US08619906B2Publication Date: 2013-12-31
- Inventor: Chunlong Bai
- Applicant: Chunlong Bai
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Christopher & Weisberg, P.A.
- Main IPC: H04K1/02
- IPC: H04K1/02
Abstract:
A method and system for pre-distorting a dual band signal to compensate for distortion of a non-linear power amplifier in a radio transmitter are disclosed. In one embodiment, the first signal of the dual band signal is tuned to a first intermediate frequency to produce a first tuned signal and the second signal of the dual band signal is tuned to minus the intermediate frequency to produce a second tuned signal. A single input pre-distorter pre-distorts the sum of the first tuned signal and the second tuned signal. The coefficients of the pre-distorter are obtained from a one-dimensional look-up table.
Public/Granted literature
- US20130243123A1 LOOK UP TABLE-BASED SUM PREDISTORTER FOR POWER AMPLIFIFICATION WITH CONCURRENT DUAL BAND INPUTS Public/Granted day:2013-09-19
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