Multifrequency radar images of electrodynamics objects located behind dielectric layer in millimeter wave range

The problem of measurements of reflectivity of different structures situated behind a dielectric slab is rather general problem, which is induced by requirements of technological radar, non-destructive testing of industrial products, building materials, underground probing. The implementation of multifrequency method for measuring microwave reflectivity in the free space allowed testing various numbers of objects with the purpose of estimating their parameters such as width, length, the form and reflecting ability. The purpose of the paper is present some results for simple objects which located behind the radiotransparent barrier.