Passivity Limitations on Absorption Properties of Low-Scattering Objects

被引：0
|
作者：
Estakhri, N. Mohammadi [1 ]
Fleury, R. [1 ]
Soric, J. [1 ]
Alu, A. [1 ]
机构：
[1] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA
来源：
2013 7TH INTERNATIONAL CONGRESS ON ADVANCED ELECTROMAGNETIC MATERIALS IN MICROWAVES AND OPTICS (METAMATERIALS 2013) | 2013年
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：
We analyze the constraints governing absorption and scattering of arbitrary sensors or receiving antennas. Our findings bring forward interesting physical limitations on the amount of accessible absorption in a low-scattering sensor and suggest practical ways to achieve efficient designs for noninvasive sensors, based on the application needs. A subwavelength dipole antenna is studied as a numerical demonstration of our theory in the subwavelength limit.
引用
收藏
页码：424 / 426
页数：3
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