Improvement of Oblique Incidence Performance for a Microwave Absorber Based on Magnetic Polymer Composites
This paper presents a microwave absorber combining together the frequency selective surfaces(FSSs)and magnetic absorbing sheet for stable absorption under both TE and TM polarizations.The proposed absorber is constructed of magnetic absorbing substrate embedded with a periodic array of cross pattern composing a series of circular-metal-disks,and a bottom metal plane.The absorption characteristics of the magnetic absorbing substrate under both TE and TM polarizations are tuned and improved by introducing the circular-metal-disks.After optimizing the dimensions of the circular-metal-disks,the absorber with a thickness of 2.4 mm achieves a reflection coefficient less than ?10 dB from 4.8 GHz to 11.0 GHz with a stable frequency response up to 30? for both polarizations.Meanwhile,the absorber has a wide bandwidth of 10.8 GHz with the incidence angle from 45? to 60? under TM polarization.The study of the current indicates that the improvement of the absorption characteristics is due to both the electric resonance and magnetic resonance.
Linbo Zhang Nan Zhang Peiheng Zhou Yangqiu Xu Haiyan Chen Jianliang Xie Longjiang Deng
National Engineering Research Center of Electromagnetic Radiation Control Materials State Key Laboratory of Electronic Thin Film and Integrated Devices University of Electronic Science and Technology of China,Chengdu 610054,China
国际会议
Progress in Electromagnetics Research Symposium 2014(2014年电磁学研究新进展学术研讨会)
广州
英文
2473-2477
2014-08-01（万方平台首次上网日期，不代表论文的发表时间）