The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2011
Filed:
Mar. 13, 2008
Walid Khairy Mohamed Ahmed, Tinton Falls, NJ (US);
Qing LI, Princeton Junction, NJ (US);
Ajit Kumar Reddy, Matawan, NJ (US);
Eoin Carey, Cork, IE;
Walid Khairy Mohamed Ahmed, Tinton Falls, NJ (US);
Qing Li, Princeton Junction, NJ (US);
Ajit Kumar Reddy, Matawan, NJ (US);
Eoin Carey, Cork, IE;
Pine Valley Investments, Inc., Las Vegas, NV (US);
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.