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:
Feb. 24, 2015
Filed:
Aug. 03, 2011
Applicant:
Lothar Schenk, Berlin, DE;
Inventor:
Lothar Schenk, Berlin, DE;
Assignee:
Rohde & Schwarz GmbH & Co. KG, Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/02 (2006.01); H03F 1/42 (2006.01); H03F 1/56 (2006.01); H03F 3/60 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0288 (2013.01); H03F 1/0261 (2013.01); H03F 1/42 (2013.01); H03F 1/56 (2013.01); H03F 3/602 (2013.01); H03F 2200/192 (2013.01); H03F 2200/198 (2013.01); H03F 2200/204 (2013.01); H03F 2200/222 (2013.01); H03F 2200/36 (2013.01); H03F 2200/387 (2013.01); H03F 2200/414 (2013.01); H03F 2200/417 (2013.01); H03F 2200/423 (2013.01); H03F 2200/543 (2013.01);
Abstract
A high-frequency power amplifier comprises a broadband amplifier (), a Doherty extension () and a coupling device (). In this context, the broadband amplifier () provides a power splitter (), a main amplifier path () and an auxiliary amplifier path (). The Doherty extension () provides a first offset line (), a second offset line () and an impedance inverter (). The broadband amplifier () amplifies an input signal and supplies the amplified signal to the Doherty extension () or to the coupling device ().