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:
Dec. 17, 2019
Filed:
Jun. 18, 2018
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Nobuyuki Tenno, Nagaokakyo, JP;
Hiromitsu Ito, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An antenna device includes a first coupling conductor connected to a power supply circuit, a second coupling conductor at least magnetically coupled to the first coupling conductor, a first capacitor connected in series to the second coupling conductor, a second capacitor connected in parallel to a series circuit including the second coupling conductor and the first capacitor, and an electrically conductive member connected to the second capacitor and defining a portion of or the entire closed loop together with the second capacitor. The capacitance of the first capacitor is smaller than the capacitance of the second capacitor.