ELECTROMAGNETIC INTERFERENCE NOISE REDUCTION BOARD USING ELECTROMAGNETIC BANDGAP STRUCTURE

摘要

PURPOSE: A printed circuit board for reducing an EMI noise is provided to shield a radiation noise by inserting an electromagnetic bandgap structure into the substrate. CONSTITUTION: A ground layer and a power layer are formed on a first region(100). A second region is positioned on the side of the first region and includes an electromagnetic bandgap structure to shield an EMI noise emitted to the outside through the side of the first region. A first conductive plate(220a) and a second conductive plate(220b) are formed on the same plane along the side of the first region. A stitching via part(250) electrically connects the first and second conductive plates.