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:
Mar. 05, 2013
Filed:
Jun. 01, 2011
Yilong Shen, Nijmegen, NL;
Yilong Shen, Nijmegen, NL;
NXP B.V., Eindhoven, NL;
Abstract
The invention refers to a Doherty power amplifier comprising a first power amplifier (Main PA) adapted to receive an input signal and adapted to provide a first output signal which is phase shifted with respect to the input signal. The amplifier further comprises a second power amplifier (Peak PA), adapted to receive a phase shifted input signal and adapted to provide a second output signal. The power amplifier is characterized in that at least one of the first or the second power amplifiers comprises a first driver power amplifier (T) comprising a first gate input and a first drain output. The first driver power amplifier (T) is coupled to a first output power amplifier (T) comprising a second gate input and a second drain output. The first gate input and the second gate input are adapted to receive a control signal, the control signal being obtained after an envelope detection provided by an envelope detector coupled to the input signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile