Scattering by Dielectric or Conducting Cylinders above a Lossy Medium and Relevant Focusing Effects

In this paper, we present an analytical solution based on the Cylindrical Wave Approach to study the interaction of a plane-wave with cylindrical objects, either dielectric or conducting, placed above a semi-infinite lossy medium. The effects of focusing of the electromagnetic field by the array of scatterers is investigated. The analytical approach is validated by a comparison with a commercial software. Some numerical examples are presented, considering both TM and TE polarization of the incident wave in the millimeter frequency range at 24 GHz. Interesting applications are in the modelling of the scattered field by objects above a biological tissues, in the presence of wereable or implantable antennas sources.