Invention Grant
- Patent Title: Digital polar transmitter
- Patent Title (中): 数字极性发射机
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Application No.: US12048022Application Date: 2008-03-13
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Publication No.: US08009765B2Publication Date: 2011-08-30
- Inventor: Walid Khairy Mohamed Ahmed , Qing Li , Ajit Kumar Reddy , Eoin Carey
- Applicant: Walid Khairy Mohamed Ahmed , Qing Li , Ajit Kumar Reddy , Eoin Carey
- Applicant Address: US NV Las Vegas
- Assignee: Pine Valley Investments, Inc.
- Current Assignee: Pine Valley Investments, Inc.
- Current Assignee Address: US NV Las Vegas
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Main IPC: H04K1/02
- IPC: H04K1/02

Abstract:
A digital polar transmitter includes a baseband processor configured to receive an input signal and to convert the input signal into a baseband amplitude component and a baseband phase component. The transmitter also includes a phase modulator in communication with the baseband processor. The phase modulator is configured to modulate an RF carrier signal based on the phase component and to generate a phase-modulated RF carrier signal. A power amplifier is provided in communication with the baseband processor and the phase modulator. The power amplifier is configured to amplify the phase-modulated RF carrier signal based on the baseband amplitude component and to generate an amplified RF signal. The transmitter also includes a digital feedback loop in communication with the power amplifier and the baseband processor. The digital feedback loop is configured to detect the amplified RF signal and to provide a digital amplitude feedback signal and a detected phase feedback signal to the baseband processor.
Public/Granted literature
- US20080225984A1 Digital Polar Transmitter Public/Granted day:2008-09-18
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