A Novel Embedded Via Planar Electromagnetic Band Gap Structure for Noise Suppression PCBs

• Main Authors: Chang, Kai-Lin, 張鎧麟
• Other Authors: Lin, Jiun-Hwa
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/18887393093454333470

碩士 === 國立臺灣海洋大學 === 電機工程學系 === 102 === In this paper we propose a novel planner of electromagnetic band gap (EBG) structure, in which a spiral structure is designed to increase the inductance and thus of the noise suppression band can be lowered. We study different spiral structures to show how they affect the noise suppression bandwidth. By adjusting the section size in spirals, we attain an EBG which is characteristic of two noise suppression bands：0.45GHz~2.5GHz and 6.5~13.5GHz. To improve the noise suppression performance from 2.6GHz to 6.4GHz, several via holes are embedded in one spiral line and the resulting EBG yields a very wide noise suppression band. Furthermore, we try simplifying the spiral structure by reducing the number of sections from 6 to 4, and removing some metal area within the spiral. Thus new design can achieve a 310MHz~15GHz noise suppression frequency band.