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Updated: Jun 23, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
Published on: June 7, 2019
Rainbow-like radiation from an omni-directional source placed in a uniaxial metamaterial slab
Tao Jiang1, Yu Luo, Zhiyu Wang
1The Electromagnetics Academy at Zhejiang University, Zhejiang University, Hangzhou 310027, China.
Abstract:
In this paper, the radiation of an omni-directional line source placed in a uniaxial metamaterial slab is experimentally presented. The anisotropic slab made of metallic symmetrical rings with dispersive permeability is investigated both theoretically and experimentally. For low value of the permeability, a directive radiation at the broadside of the slab can be obtained. Due to the excitation of the leaky wave mode supported by this structure, the emitted electromagnetic wave transmits at a greater angle from the normal of the slab as the value of permeability increases along with the frequency. Thus a rainbow-like radiation will be formed since waves of different frequencies will deflect into different directions.
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