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In this paper, we proposed a half-wave plate, which works at millimeter-wave band, based on a field transformation(FT) method with wide incident angle and broad working bandwidth. The proposed waveplate is composed of periodically arranged two dielectric layers with sub-wavelength heights. The effective electromagnetic(EM) parameters of the proposed waveplate can be tuned by manipulating the heights...
A flexible low-scattering metasurface is presented in the paper. By randomly distributing various dimensional elements along the surface, the proposed design can mimic a diffuse reflection surface, achieving a broadband backward low-scattering property. Through optimization, flexible samples composed of metallic-element-printed film and flexible substrate are designed, fabricated and measured in microwave...
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