US Patent 11431297 Envelope tracking power amplifier apparatus with predistortion
Patent 11431297 was granted and assigned to Qorvo on August, 2022 by the United States Patent and Trademark Office.
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Patent Inventor Names
Nadim Khlat0
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Patent Number
114312970
Date of Patent
August 30, 2022
0Patent Application Number
171758490
Date Filed
February 15, 2021
0Patent Citations
Patent Primary Examiner
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US Patent 11431297 Envelope tracking power amplifier apparatus with predistortion
Article
An envelope tracking (ET) power amplifier apparatus with predistortion includes an amplifier circuit configured to amplify a radio frequency (RF) signal based on an ET voltage and a tracker circuit configured to generate the ET voltage based on an ET target voltage. The amplifier circuit may introduce phase and amplitude distortions to the signal being amplified. To offset such distortions, exemplary aspects of the present disclosure add an isogain predistortion circuit in an ET integrated circuit (IC) to correct for amplitude distortions and add a phase modulation predistortion circuit to correct for phase distortions.
Infobox
Is a
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
11431297
Date of Patent
August 30, 2022
Patent Application Number
17175849
Date Filed
February 15, 2021
Patent Citations
Patent Primary Examiner
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