Broadband cross polarization converter using plasmon hybridizations in a ring/disk cavity

Abstract

In this paper, we report on the design, fabrication and subsequent investigation of a broad band cross polarization converter based on a C2-symmetric ring/disk cavity. Different plasmon hybridization modes are excited in the ring/disk cavity and enable the polarization manipulations. The designed cross polarization converter can convert the x or y polarized incident wave to its cross polarized wave in the frequency range from 9.65 to 14.16 GHz with a bandwidth of ~38% of the central wavelength and an efficiency higher than 80%. At 9.25 GHz and 14.35 GHz, the x (y) polarized incident wave is converted to a left (right) handed and right (left) handed circularly polarized wave, respectively.

Broadband Metamaterial Reflectors for Polarization Manipulation Based on Cross/Ring Resonators

“…Define R xx = |E rx /E ix | and R yx = |E ry /E ix | to represent the reflection ratio of x-to-x and x-to-y polarization conversions under the x polarized normal incidence. In [20] 54.5% 56% 0.19λ In [21] 38% 80% 0.5λ In [22] 70% 68.6% 0.43λ Our work 55.5% 80% 0.54λ…”

“…The polarization conversion bandwidth reaches 54.5%, while the cross polarization conversion efficiency is just above 56%. Shi et al proposed a cross polarization converter using resonance hybridizations [21]. Conversion efficiency is higher than 80%, while the bandwidth is only 38%.…”

Polarization-Dependent Multi-Functional Metamaterial as Polarization Filter, Transparent Wall and Circular Polarizer using Ring-Cross Resonator

“…To better understand the performance of the PDMFM as a circular polarizer, the ellipticity χ and polarization azimuth rotation angle τ of the transmitted wave are calculated using the following equations [31], [32] x y 2 2 x y …”

Erratum for: Analysis of antenna gain enhancement using new frequency selective surface superstate

“…However, when we study the surface current distribution, it seems that the physical origin is similar to polarization conversion that we have researched [2]- [5]. What's more, similar structure has been designed to realize broad band polarization conversion at Terahertz [6].…”