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:
Jun. 21, 2022
Filed:
Apr. 30, 2020
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/22 (2006.01); H01Q 7/00 (2006.01); H01Q 1/50 (2006.01); H01F 27/245 (2006.01); H01F 27/28 (2006.01); H01L 23/66 (2006.01); H03H 7/38 (2006.01);
U.S. Cl.
CPC ...
H01Q 1/2283 (2013.01); H01F 27/245 (2013.01); H01F 27/2804 (2013.01); H01L 23/66 (2013.01); H01Q 1/50 (2013.01); H01Q 7/00 (2013.01); H03H 7/38 (2013.01); H01L 2223/6677 (2013.01);
Abstract
Disclosed herein is an antenna device that includes a substrate; a conductor pattern formed on the substrate and including a spiral or loop-shaped antenna coil, a spiral or loop-shaped coupling coil being connected to the antenna coil and having a diameter smaller than that of the antenna coil, and a spiral-shaped booster coil at least partially overlapping the antenna coil through the substrate without being connected thereto; and a resonance capacitor connected to the booster coil. The number of turns of the booster coil is larger than that of the antenna coil.