Open radiating systems for microwaves and millimeter waves

The planar open radiating system consisting of two segments of parabolic reflectors, joined by planar dielectric waveguide with a metal substrate, is considered. A periodic structure of metal tapes is located on the opposite side of the planar dielectric waveguide. Two crystal diodes are located in focal points of reflectors. Such an open radiating system provides an excitation of crystal diodes, control of oscillation frequency, formation of the pencil-beam diagram of radiation, reception and transformation of reflected signals in one device having acceptable mass, dimensions and electrical parameters