Propagation of Plane Waves Through Two Parallel Dielectric Sheets

A study is presented of the standing waves created in the region between two parallel dielectric sheets when a plane electromagnetic wave propagates through the system in a direction normal to the dielectric boundaries. This model closely resembles the exposure of experimental animals, housed within restrainers of dielectric materials, to free-field microwave radiation. Data are presented giving the ratio of the standing waves set up for various sheet thicknesses and different dielectric materials, and it is demonstrated that significant changes in estimated power density levels are created by the restrainers.