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. 07, 2020
Filed:
Jun. 19, 2018
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Inventors:
Kentaro Mikawa, Nagaokakyo, JP;
Tsuyoshi Suesada, Nagaokakyo, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 3/24 (2006.01); H01Q 7/00 (2006.01); H04B 5/00 (2006.01); H02J 50/12 (2016.01);
U.S. Cl.
CPC ...
H01Q 3/24 (2013.01); H01Q 7/00 (2013.01); H02J 50/12 (2016.02); H04B 5/0081 (2013.01); H04B 5/0037 (2013.01);
Abstract
An antenna device includes a first coil antenna conductor including first and second ends, a second coil antenna conductor including third and fourth ends, and a switching circuit. The first coil antenna conductor is wound around an axis and the second coil antenna conductor is wound around an axis. The switching circuit switches a connection state of the first coil antenna conductor and the second coil antenna conductor between connection states including series connection and parallel connection.