Invention Grant
US07706467B2 Transmitter with an envelope tracking power amplifier utilizing digital predistortion of the signal envelope
失效
具有信号跟踪功率放大器的发射机利用信号包络的数字预失真
- Patent Title: Transmitter with an envelope tracking power amplifier utilizing digital predistortion of the signal envelope
- Patent Title (中): 具有信号跟踪功率放大器的发射机利用信号包络的数字预失真
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Application No.: US11016508Application Date: 2004-12-17
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Publication No.: US07706467B2Publication Date: 2010-04-27
- Inventor: Peter Blakeborough Kenington
- Applicant: Peter Blakeborough Kenington
- Applicant Address: US NC Hickory
- Assignee: Andrew LLC
- Current Assignee: Andrew LLC
- Current Assignee Address: US NC Hickory
- Agency: Wood, Herron & Evans LLP
- Main IPC: H04L25/03
- IPC: H04L25/03
Abstract:
A transmitter comprises an amplifier operable for receiving an input signal and amplifying the input signal to produce an output signal. A power supply is coupled to the amplifier for supplying power to the amplifier, the power supply operable for tracking the input signal and varying the level of power supplied to the amplifier in response to variation of the input signal. A predistortion circuit is coupled to the power supply, the predistortion circuit operable for receiving the input signal and predistorting the input signal to the power supply for addressing input signal tracking capabilities of the power supply.
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