The dielectric non-metallic reflecting FZP antennas

A reflective type antenna, because of the zonal slice, has been patented by Clavier and Darbord (1936), and discussed by Van Burskirk and Hendrix (1961). In the present work a type of reflecting antenna based on the dielectric Fresnel zoned plate (FZP) which is does not contain metal screens is proposed. The principle of the construction of such an antenna consists of the following. At the reflection of an electromagnetic wave from the goffered boundary of a dielectric the effect of a full antimirror reflection can be observed. This effect is observed in the case, when at reflection from the smooth units of these dielectrics the full reflection is observed. We consider the boundary of two dielectrics with different indexes of a permeability having a phase goffer d, amplitude A/sub 0/ and circumscribed in the elementary case by the formula: A(x)=A/sub 0/sin((2/spl pi//d)x).