High-frequency signal predistortion device and nonlinear distortion correcting device for power amplifier
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United States of America Patent
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Mar 20, 2018
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app pub date -
Sep 14, 2016
filing date -
Mar 23, 2016
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Abstract
A high-frequency signal predistortion device includes a high-frequency signal estimator, a predistortion estimator, and a predistorter. The high-frequency signal estimator is configured to determine non-linear distortion characteristics of high-frequency signals transmitted by antennas. The predistortion estimator is coupled to the high-frequency signal estimator. The predistortion estimator is configured to determine a predistortion coefficient based on the non-linear distortion characteristics. The predistorter is coupled to the predistortion estimator. The predistorter is configured to distort a base signal of the high-frequency signals based on the predistortion coefficient.
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