Abstract
A broadband reflective polarization converter is proposed. The unit cell of polarization converter is composed of a single-split resonant ring, a double-split resonant ring, a dielectric substrate and a metallic ground. The simulated results show that the polarization converter can convert x-polarized waves into y-polarized waves and obtain a broadband polarization conversion from 0.501 0 THz to 1.390 0 THz with the polarization conversion ratio (PCR) beyond 80% at normal incidence. Moreover, the surface current distributions are investigated to explain the polarization conversion mechanism. Finally, a good agreement is achieved between simulated and measured results. The polarization converter can be applied in terahertz imaging, communication and stealthy technology.
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This work has been supported by the New Direction Cultivation Project of Chongqing University of Posts and Telecommunications (No.A2014-116).
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Pan, W., Shen, Dj. & Yan, Yj. Design of broadband polarization converter for terahertz waves. Optoelectron. Lett. 14, 434–437 (2018). https://doi.org/10.1007/s11801-018-8072-3
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DOI: https://doi.org/10.1007/s11801-018-8072-3