Design of elliptically polarized millimeter wave antenna arrays

Results of design and investigations of elliptically polarized millimeter wave antenna arrays are shown. A presented leaky-wave antenna arrays consist of the waveguide structure and finite diffraction grating. The diffraction grating is excited by E type surface wave, which is the eigen wave of the waveguide structure. The diffraction grating consist of rectilinear and parallel nonhomogeneities, which are disposed at an angle of alpha in the direction of surface wave propagation. The angle alpha, widths and distances between nonhomogeneities are choosing by using special optimization algorithms in order to receive necessary electrodynamics characteristics.