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:
Jul. 30, 2024
Filed:
Apr. 22, 2022
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventor:
Tatsuya Hashinaga, Osaka, JP;
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/06 (2006.01); H03F 1/14 (2006.01); H03F 1/30 (2006.01); H03F 1/56 (2006.01); H03F 3/195 (2006.01); H03F 3/54 (2006.01);
U.S. Cl.
CPC ...
H03F 1/06 (2013.01); H03F 1/14 (2013.01); H03F 1/30 (2013.01); H03F 1/565 (2013.01); H03F 3/195 (2013.01); H03F 3/54 (2013.01);
Abstract
An amplifier circuit includes a first amplifier that amplifies a high frequency signal, and a load circuit that changes a load impedance of the first amplifier without being controlled by an external circuit so that a saturation power at a first temperature is higher than a saturation power at a second temperature lower than the first temperature, and an efficiency at the first temperature is lower than an efficiency at the second temperature.