Invention Grant
- Patent Title: Adaptive harmonic cancellation
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Application No.: US16855572Application Date: 2020-04-22
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Publication No.: US11641155B2Publication Date: 2023-05-02
- Inventor: Seyyed Amir Ayati , Noshir Dubash , Zaid Aboush
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Patterson + Sheridan, L.L.P.
- Main IPC: H02M1/12
- IPC: H02M1/12

Abstract:
Certain aspects of the present disclosure provide apparatus and techniques for wireless communication implemented with harmonic cancellation. One example implementation includes a polar transmitter having at least one amplifier having an input configured to receive a phase-modulated signal to be amplified based on an amplitude-modulated signal, a harmonic cancellation circuit coupled to the input of the at least one amplifier, the harmonic cancellation circuit being configured to cancel at least one of an even harmonic or an odd harmonic of a transmission signal at an output of the polar transmitter, a controller having an output coupled to one or more control inputs of the harmonic cancellation circuit, and a feedback path between an output of the at least one amplifier and an input of the controller.
Public/Granted literature
- US20210336526A1 ADAPTIVE HARMONIC CANCELLATION Public/Granted day:2021-10-28
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