Electromagnetic bandgap structure and printed circuit board

An electromagnetic bandgap structure comprising:

• at least three conductive plates;
• a first stitching via, configured to electrically connect any one of the conductive plates to another conductive plate;
• and
• a second stitching via, configured to electrically connect the one conductive plate to yet another conductive plate,
• wherein the first stitching via and the second stitching via electrically connect the one conductive plate to another conductive plate and yet another conductive plate, respectively, by allowing a part of the first stitching via and a part of the second stitching via to be connected through a location and another location, respectively, on a same planar surface, and at least one conductive layer is placed between at least one of the part of the first stitching via and the part of the second stitching via and the conductive layers.

A printed circuit board, comprising an electromagnetic bandgap structure, arranged in an area of a noise transferable path between a noise source point and a noise blocking destination point of the printed circuit board, wherein the electromagnetic bandgap structure comprises:

• at least three conductive plates;
• a first stitching via, configured to electrically connect any one of the conductive plates to another conductive plate;
• and
• a second stitching via, configured to electrically connect the one conductive plate to yet another conductive plate, wherein:
• the first stitching via electrically connects the one conductive plate to another conductive plate by allowing a part of the first stitching via to be connected through a planar surface above or below the one conductive plate, and
• the second stitching via electrically connects the one conductive plate to yet another conductive plate by allowing a part of the second stitching via to be connected through a planar surface that is different from the planar surface through which the part of the first stitching via is connected, the two planar surfaces being placed in a same direction based on the three or more conductive plates.

A printed circuit board, comprising an electromagnetic bandgap structure, arranged in an area of a noise transferable path between a noise source point and a noise blocking destination point of the printed circuit board, wherein the electromagnetic bandgap structure comprises:

• at least three conductive plates;
• a first stitching via, configured to electrically connect any one of the conductive plates to another conductive plate;
• and
• a second stitching via, configured to electrically connect the one conductive plate to yet another conductive plate, wherein:
• the first stitching via and the second stitching via electrically connect the one conductive plate to another conductive plate and yet another conductive plate, respectively, by allowing a part of the first stitching via and a part of the second stitching via to be connected through a location and another location, respectively, on a same planar surface, and at least one conductive layer is placed between at least one of the part of the first stitching via and the part of the second stitching via and the conductive layers.