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. 08, 2022
Filed:
Feb. 11, 2018
Applicant:
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Inventor:
Zhancang Wang, Beijing, CN;
Assignee:
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/02 (2006.01); H03F 1/56 (2006.01); H03F 3/21 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0288 (2013.01); H03F 1/56 (2013.01); H03F 3/211 (2013.01); H03F 2200/222 (2013.01); H03F 2200/387 (2013.01); H03F 2200/451 (2013.01);
Abstract
A Doherty power amplifier comprises a splitter network, a first amplifier path comprising at least a first sub-amplifier and a first output matching network; and a second amplifier path comprising at least a second sub-amplifier amplifier and a second output matching network. The Doherty power amplifier further comprises a load modulation network comprising four transmission lines. Each transmission line is a quarter wavelength line at a fundamental frequency of the input signal.