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. 13, 2024
Filed:
Jun. 24, 2021
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventors:
Takafumi Nasu, Nagaokakyo, JP;
Kenichi Ishizuka, Nagaokakyo, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 5/378 (2015.01); H01Q 1/24 (2006.01); H01Q 1/48 (2006.01); H01Q 7/00 (2006.01);
U.S. Cl.
CPC ...
H01Q 1/243 (2013.01); H01Q 1/48 (2013.01); H01Q 5/378 (2015.01); H01Q 7/00 (2013.01);
Abstract
An antenna device includes a first radiating element, a second radiating element having lower radiation efficiency than the first radiating element, a coupling element including first and second coils that are electromagnetically coupled to each other, and first and second phase adjusting elements. The first and second phase adjusting elements induce, at a resonant frequency of the second radiating element, a predetermined proportion of current flowing through the second radiating element to the first radiating element.