A Novel Electromagnetic Bandgap Structure for Suppressing Synchronous Switching Noise

[0029] The present invention will be further described in detail below in conjunction with specific embodiments of the accompanying drawings.

[0030] like figure 1 Shown is a schematic diagram of the structure of the present invention, from the top layer to the bottom layer are respectively a power plane 1, an insulating dielectric layer 2, and a complete ground plane 3, wherein the novel electromagnetic bandgap structure is etched on the power plane.

[0031] like figure 2 Shown is the structural basic unit schematic diagram of the present invention, and its basic unit structure is in a such as image 3 A vertical line groove is etched on each side of the power plane shown, and a microstrip line is drawn from the midpoint of the bottom of the groove, and the microstrip line surrounds the power plane in a counterclockwise direction to the end of its next side; The central area of ​​the power plane is a hollowed out area, embedded with a small square planar plate, and the f...