Near-field Shaping by Leaky-Wave Metasurfaces: OAM and Bessel Beams Synthesis

被引：0
|
作者：
Bodehou, M.
Craeye, C.
Huynen, I
机构：
来源：
PROCEEDINGS OF THE 2019 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) | 2019年
关键词：
Near-field focusing; OAM beams; modulated metasurfaces; method of moments; bessel beams; ORBITAL ANGULAR-MOMENTUM; FLAT OPTICS; LIGHT;
D O I：
10.1109/iceaa.2019.8879142
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 present and discuss the synthesis of Leaky-wave (LW) radiating metasurfaces for near-field applications. The metasurface sheet transition Impedance Boundary Condition (IBC) is computed after discretizing the relevant Electric Field Integral Equation (EFIE) with Fourier-Bessel basis functions. We have shown that the near-field of the MTS can be controlled with a very good accuracy, down to a height of about one wavelength from the surface. Several examples have been successfully designed, which cover Bessel beam radiators for focusing applications and multiple OAM beams. The designed MTSs are numerically validated with the Method of Moments (MoM).
引用
收藏
页码：1210 / 1213
页数：4
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