为加强研究生学术交流活动，推进学术创新，特开通“研究生学术报告预告区”。我校研究生和教师可以在预告区及时发布和了解有关研究生学术报告的信息，届时参加。也可就某学术报告展开专题讨论与交流。
Complex permittivity and permeability of single-layer materials on a known substrate are directly extracted from two measured S-parameters (S11 and S21). The frequency-dependent formulas of the complex permittivity and permeability of the single-layer materials are derived for the first time. A thin flexible absorber on a known substrate and a thin low-loss material on a known substrate are measured in the X-band to experimentally validate the proposed technique. We also investigate the proposed technique with a thick low-loss material on a known substrate.