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:
Jan. 26, 2021
Filed:
Sep. 10, 2018
Tdk Corporation, Tokyo, JP;
Yasuyuki Hara, Tokyo, JP;
Naoki Sotoma, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
Disclosed herein is an antenna device that includes a circuit layer having a filter circuit, an antenna layer stacked on the circuit layer and having a radiation conductor, a feed layer positioned between the circuit layer and the antenna layer and having a first feed pattern connected to the filter circuit and electromagnetically coupled to the radiation conductor, a first ground pattern provided between the antenna layer and the feed layer, and a second ground pattern provided between the circuit layer and the feed layer. The first and second ground patterns have first and second slots, respectively, at least partially overlapping each other as viewed in a stacking direction. The first feed pattern at least partially overlaps the radiation conductor and the first and second slots.