A broadband cross-polarization conversion anisotropic metasurface based on multiple plasmon resonances

• 来源期刊: 中国物理B（英文版）
• 关键词: cross-polarization conversion anisotropy metasurface plasmon resonances
• 年，卷（期）: 2018,（1）
• 页码范围: 357-364
• 页数: 8页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/1/014101

摘要

A compact broadband cross-polarization conversion metasurface functioning in the microwave regime is realized and experimentally demonstrated. The metasurface consists of a two-dimensional periodic arrangement of anisotropic double-slit split-ring-resonator-based unit cells printed on top of a dielectric substrate, backed by metallic cladding. The proposed metasurface converts an x-or y-polarized wave into its orthogonal polarization over a fractional bandwidth of 100％from 5–15 GHz, both for normal as well as oblique incidence. Moreover, the sub-wavelength unit-cell size, thin dielectric substrate, and unique unit-cell design collectively make the response of the metasurface same for both polarizations and insensitive to the incidence angle. The designed structure is fabricated and tested. The measurement and simulation results are found to be consistent with each other.