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. 21, 2020
Filed:
Jul. 20, 2017
National University Corporation Okayama University, Okayama-shi, Okayama, JP;
Kyocera Corporation, Kyoto-shi, Kyoto, JP;
Yoshitaka Toyota, Okayama, JP;
Kengo Iokibe, Okayama, JP;
Xingxiaoyu Lin, Okayama, JP;
Toshiyuki Kaneko, Hachioji, JP;
Masanori Naito, Fuchu, JP;
Toshihisa Uehara, Sagamihara, JP;
NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITY, Okayama-Shi, Okayama, JP;
KYOCERA CORPORATION, Kyoto-Shi, Kyoto, JP;
Abstract
A printed wiring board of the present disclosure includes a power supply layer and a ground layer. A power supply layer pattern to be formed partially on the power supply layer includes a branch and a power supply layer electrode. The branch is a direct-current power feeding path for connecting adjacent electromagnetic band gap (EBG) unit cells, and the power supply layer electrode is connected through a slit provided along the branch. A capacitive coupling element disposed to oppose the power supply layer electrode with an interlayer being provided therebetween has a structure in which the EBG unit cells are disposed at regular intervals, the EBG unit cells being connected to the branch in the power supply layer pattern through a via.