Serpent Novel Planar Electromegnetic Band Gap Structures of Suppression ofSwitching Noise in High Speed PCB

摘要

We proposed the novel planar miniature and wide band electromagnetic band gap structures withmeander plane for power/ground noise suppression in multilayer printed circuit boards. An ultra wide band gapextending from 300 MHz to 10 GHz and beyond is demonstrated by both simulation and measurement and a fineconcurrence is observed. In this study a novel method of arranging number of EBG unit cells on both thepower ground planes in multi layer PCBs and package is proposed, not only as a means of sufficiently thepropagation of power noise but also as a means of minimizing the effect of EBG patterned on a high speedsignal. A novel concept of using the EBG structures the reduction of electromagnetic interference is alsointroduced.