Artificial Dielectrics for Matching or Absorbing Em Devices

摘要

As a preliminary approach to the study of scattering from geometrically tapered layers, the cylindrical obstacle or hole type artificial dielectric is considered. The equivalent em parameters of such a device are computed, and theoretical results are compared with experimental measured data. Possible anisotropic effects are also illustrated. Measurements in the microwave region on mixture-type artificial dielectrics are referred. In order to minimize measurements errors, the optimum length of the sample is computed; digital programs for working out experimental data are illustrated. The results of measurements and computations are summa-rized under several graphs and tables. (Author)