Low-Scattering Sensor with Strong Absorption Properties

被引:0
|
作者
Estakhri, Nasim Mohammadi [1 ]
Soric, Jason [1 ]
Alu, Andrea [1 ]
机构
[1] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA
关键词
ANTENNAS;
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
Suppressing the unwanted scattering from an antenna while maintaining its optimal absorption capabilities is desirable in many practical applications. However, traditional techniques to suppress the scattering of a receiving antenna typically come at the price of significantly lowering the absorbed power, and are thus unfavorable for realistic applications. On the contrary, we prove that the proper interference of multiple scattering modes can decouple the constraints on scattering and absorption of a system, opening a new venue to implement an efficient sensor with minimized scattering signature. Here, we theoretically and experimentally present the design of microwave antennas based on overlapped electric and magnetic dipolar modes, observing over 6-dB scattering suppression without sacrificing absorption. The presented technique is of special interest for non-invasive sensing and radar technology.
引用
收藏
页码:895 / 896
页数:2
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