2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING
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2017年
关键词:
Metamaterial;
Absorber;
RCS;
D O I:
暂无
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
In this research, a wide band metamaterial based electromagnetic absorber is designed and analyzed. The absorber consists of split ring resonators on the top of which resistive sheets are placed. The split ring resonators are excited by the magnetic flux passing through them. At resonance frequency the input impedance of the absorber approaches to that of free space (377 Omega) due to which maximum energy absorption occurs. Absorption efficiency, maximum up to 95% is achieved from 17-19 GHz frequency range both for TE and TM polarizations.