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. 27, 2010
Filed:
Jan. 07, 2008
Mi-ja Han, Suwon-si, KR;
Han Kim, Yongin-si, KR;
Dae-hyun Park, Ulsan, KR;
Hyo-jic Jung, Daejeon, KR;
Mi-Ja Han, Suwon-si, KR;
Han Kim, Yongin-si, KR;
Dae-Hyun Park, Ulsan, KR;
Hyo-Jic Jung, Daejeon, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon, KR;
Abstract
An electromagnetic bandgap structure and a printed circuit board that can solve a mixed signal problem between an analog circuit and a digital circuit are disclosed. In accordance with an embodiment of the present invention, the electromagnetic bandgap structure can include a metal layer; and a plurality of mushroom type structures including a metal plate and a via. Here, the plurality of mushroom type structures can be formed on the metal layer in a stacked structure. With the present invention, the small sized electromagnetic bandgap structure can have a lower bandgap frequency.