COMPACT WIDE DYNAMIC RANGE TRANSMITTER FOR POINT TO POINT RADIO
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United States of America Patent
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app pub date -
Dec 23, 2014
filing date -
Jan 22, 2007
priority date (Note) -
Abandoned
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Abstract
A radio frequency transmitter comprising a modem which receives one or more input data signals and an adaptive predistortion signal and provides a baseband in-phase signal and a baseband quadrature signal. The transmitter may comprise a power amplifier module which receives the in-phase and quadrature phase signals and provides a radio frequency output signal. A predistortion module receives the radio frequency signal, downconverts the radio frequency signal to an intermediate frequency signal, and downconverts the intermediate frequency signal to a baseband feedback signal. The transmitter samples the feedback signal and provides an adaptive predistortion signal to the modem.
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