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:
Sep. 20, 2011
Filed:
Dec. 18, 2008
Radjindrepersad Gajadharsing, Nijmegen, NL;
Weng Chuen Edmund Neo, Nijmegen, NL;
Marco Johannes Pelk, Rotterdam, NL;
Leonardus Cornelis Nicolaas DE Vreede, Pgnacker, NL;
Ji Zhao, Nijmegen, NL;
Radjindrepersad Gajadharsing, Nijmegen, NL;
Weng Chuen Edmund Neo, Nijmegen, NL;
Marco Johannes Pelk, Rotterdam, NL;
Leonardus Cornelis Nicolaas De Vreede, Pgnacker, NL;
Ji Zhao, Nijmegen, NL;
NXP B.V., Eindhoven, NL;
Abstract
A 3-way Doherty amplifier has an amplifier input and an amplifier output. The amplifier has a main stage, a first peak stage and a second peak stage. The amplifier has an input network connecting the amplifier input to the inputs of the stages, and an output network connecting the stages to the amplifier output. The output network implements a phase shift of 90° between the output of the main stage and the amplifier output; a phase shift of 180° between the output of the first peak stage and the amplifier output; and a phase shift of 90° between the third output and the amplifier output.