科研之友
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摘要
We developed a reflection polarization convertor by using the conventional metamaterial absorber. The metal-dielectric-metal sandwich structure, in which copper split ring at the front and metallic plane at the back are separated by FR-4, was employed to investigate for the GHz regime. This shows that a broadband of 14-18 GHz with reflectance of 36-55% is converted to 90 degrees-polarization mode, while the original one is nearly harvested (absorption of 95-100%). In other words, the original electromagnetic (EM) wave is "perfectly" absorbed and partly emitted as 90 degrees-twisted EM wave, and the remaining is dissipated as heat.
- 出版日期2014-4
