Invention Grant
- Patent Title: Linearizing technique for power amplifiers
- Patent Title (中): 功率放大器的线性化技术
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Application No.: US12478173Application Date: 2009-06-04
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Publication No.: US07791413B2Publication Date: 2010-09-07
- Inventor: Miron Catoiu , Richard McKerracher
- Applicant: Miron Catoiu , Richard McKerracher
- Applicant Address: CA Ontario
- Assignee: Her Majesty the Queen in Right of Canada
- Current Assignee: Her Majesty the Queen in Right of Canada
- Current Assignee Address: CA Ontario
- Agency: Daly, Crowley, Mofford & Durkee, LLP
- Main IPC: H03F1/00
- IPC: H03F1/00

Abstract:
Embodiments described herein relate to amplification circuits. In some embodiments the amplification circuit includes a power amplifier, a feedforward error compensation loop, and phase feedback and amplitude feedback error compensation loops nested within the feedforward loop. The two nested feedback loops provide a “pre-cleaning” action, which reduces the amount of rejection required in the feedforward loop. In some embodiments, the amplification circuit includes a power amplifier and an enhanced feedforward loop comprising a phase control circuit that maintains a phase balance needed to reduce distortion in the output signal of the amplification circuit. In some embodiments, the amplification circuit includes a power amplifier, a feedforward error compensation loop, and phase feedback and amplitude feedback error compensation loops nested within the feedforward loop and the feedforward loop comprises the phase control circuit.
Public/Granted literature
- US20090302945A1 LINEARIZING TECHNIQUE FOR POWER AMPLIFIERS Public/Granted day:2009-12-10
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