Design of Composite Electromagnetic Wave Absorber Made of Soft Magnetic Materials Dispersed and Isolated in Polystyrene Resin

摘要：

Composite electromagnetic wave absorbers made of a soft magnetic material (permalloy or sendust) and polystyrene resin were investigated. The volume mixture ratio of magnetic material was varied in the range from 18 vol％ to 75 vol％. The composites with the low volume mixture ratio of soft magnetic material absorbed more than 99％ of electromagnetic wave power in the frequency rage from 1 GHz to 12 GHz. The values of the real part μ*r of the relative complex permeability μ′r for both magnetic materials were less than unity at frequencies above approximately 6 GHz as the volume mixture ratio of magnetic material increased. This result suggests the possible realization of an electromagnetic wave absorber that can operate above 10 GHz.

作者: K.Sakai Y.Wada S.Yoshikado

作者单位: Department of Electronics,Doshisha University,Japan

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)

会议地点: 杭州

会议语种:英文

页码: 1-6

在线出版日期: 2008-03-24（万方平台首次上网日期，不代表论文的发表时间）