Invention Grant
US08150336B2 Apparatus and method for adaptive polar transmitter linearization and wireless transmitter employing the same
有权
用于自适应极性发射机线性化的装置和方法以及采用该方法的无线发射机
- Patent Title: Apparatus and method for adaptive polar transmitter linearization and wireless transmitter employing the same
- Patent Title (中): 用于自适应极性发射机线性化的装置和方法以及采用该方法的无线发射机
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Application No.: US12193186Application Date: 2008-08-18
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Publication No.: US08150336B2Publication Date: 2012-04-03
- Inventor: Khurram Waheed , Seydou N. Ba
- Applicant: Khurram Waheed , Seydou N. Ba
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Wade J. Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H04B1/04
- IPC: H04B1/04 ; H04K3/00
Abstract:
A polar transmitter and a method of linearizing a polar transmitter. In one embodiment, the transmitter includes: (1) a transmit chain having a predistorter configured to employ first amplitude and phase compensation lookup tables to carry out predistortion in the transmit chain, (2) a receiver coupled to the transmit chain and (3) predistortion compensation circuitry associated with the receiver and configured to update second amplitude and phase compensation lookup tables associated therewith based on at least one signal from the transmit chain, the values in the updated second amplitude and phase compensation lookup tables thereby available for subsequent predistortion.
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