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US 12,335,073 B2Granted
Intra-symbol voltage modulation in a wireless communication circuit
AssigneeQorvo US, Inc.
InventorNadim Khlat
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AssigneeQorvo US, Inc.
InventorNadim Khlat
Estimating the term…
Intra-symbol voltage modulation in a wireless communication circuit is disclosed. In a wireless communication circuit, a power amplifier circuit is configured to amplify a radio frequency (RF) signal based on a modulated voltage that tracks a time-variant input power of the RF signal. Herein, intra-symbol voltage modulation means that the modulated voltage can be adapted within a voltage modulation interval(s), such as an orthogonal frequency division multiplexing (OFDM) symbol duration. In embodiments disclosed herein, the voltage modulation interval(s) is divided into multiple voltage modulation subintervals and a respective voltage target is determined for each of the voltage modulation subintervals. Accordingly, the modulated voltage can be adapted in each of the voltage modulation subintervals according to the respective voltage target. By performing intra-symbol voltage modulation during the voltage modulation interval(s), the power amplifier circuit can operate with higher efficiency and prevent distortion (e.g., amplitude clipping) when amplifying the RF signal.
A transceiver circuit comprising:
A wireless communication circuit comprising:
A method for generating a target voltage for intra-symbol voltage modulation comprising:
Dependencies are inferred from the claim text.