A Study on Suppression of Electromagnetic Interference by Electromagnetic Bandgap (EBG) Structure

将周期性结构和薄铁氧体膜应用于电子器件的电源/接地层，其不仅由于形成的电磁带隙（EBG）而且由于磁损耗而实现有效的噪声抑制。通过实验和全波模拟进行了研究。通过对一个真实的电源电路进行电路仿真，获得了电源完整性特性，进一步发现所提出的结构能够充分抑制电源反弹。

A periodic structure and a thin ferrite film were applied to power/ground layers of electronic devices, which realize efficient noise suppression due to not only electromagnetic bandgap (EBG) formed but also magnetic loss. This investigation was carried out by both experiments and full-wave simulation. Through circuit simulation of a real power-supply circuit for obtaining power-integrity characteristics, furthermore, the proposed structure was found to suppress power bounce sufficiently.