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Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Huiming Xu0
Shayan Farahvash0
Reinhard Ulrich Mahnkopf0
Aleksey A. Lyalin0
Date of Patent
December 26, 2023
0Patent Application Number
173029520
Date Filed
May 17, 2021
0Patent Citations
...
Patent Primary Examiner
Patent abstract
Composite cascode power amplifiers for envelope tracking applications are provided herein. In certain embodiments, an envelope tracking system includes a composite cascode power amplifier that amplifies a radio frequency (RF) signal and that receives power from a power amplifier supply voltage, and an envelope tracker that generates the power amplifier supply voltage based on an envelope of the RF signal. The composite cascode power amplifier includes an enhancement mode (E-MODE) field-effect transistor (FET) for amplifying the RF signal and a depletion mode (D-MODE) FET in cascode with the E-MODE FET.
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