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:
Apr. 29, 2014
Filed:
May. 03, 2012
Josephus Henricus Bartholomeus Van Der Zanden, Best, NL;
Igor Blednov, Nijmegen, NL;
Iouri Volokhine, Stevensbeek, NL;
Josephus Henricus Bartholomeus van der Zanden, Best, NL;
Igor Blednov, Nijmegen, NL;
Iouri Volokhine, Stevensbeek, NL;
NXP, B.V., Eindhoven, NL;
Abstract
The present invention relates to an amplifier comprising a plurality of Doherty amplifier cells each Doherty amplifier cell comprising an input and an output respectively connected to an input and an output of the amplifier, a main amplifier stage, a peak amplifier stage and a signal combining circuit configured to combine signals from outputs of the main and peak amplifiers and provide a combined signal to the output of the Doherty amplifier cell. Each cell comprises a controllable splitter having an input (connected to the input of the Doherty amplifier cell. The controllable splitter is configured to receive a splitter control signal and modify an amplitude and phase of a signal at the input of the Doherty amplifier cell in response to the splitter control signal.