S. E. Bankov
Kotel'nikov Institute ofRadio Engineering and Electronics
Received November 12, 2012
Abstract. Problems of modeling and
design of an important element of microwave planar optics – dual layer dual
polarized mirror on the base of parallel plate waveguides are considered.
Construction of the planar mirror that provides energy transmission for waves
of two orthogonal polarizations from one layer to another with simultaneous
wave reflection in the backward direction is proposed. The mirror contains two
parallel plate waveguides coupled through a common screen in form of array of
metal strips. Eigen modes of such coupled waveguides are analyzed. It is shown
that a correct choice of the structure parameters provides the same values of
coupling coefficients of waves with orthogonal polarizations. An approximate
model of the mirror obtained under the assumption about weak perturbation of
parallel plate waveguide modes in the coupling region is obtained. Parameters
of the planar mirror are numerically calculated with help of the model.
Keywords: planar mirror, dual layer
planar mirror, dual polarized planar mirror, parallel plate waveguide.