The Study of the Behaviour of a Multilayered Screen Polarizer Using the Finite Element Method

The paper presents the spectral domain analysis of printed radiating structures. This structures include microstrip antenna elements, printed array antenna, and printed screen polarizer. The paper is focused on the screen polarizer. The screen polarizer is an important application of a multilayered structure. The analysis of a screen polarizer is very straightforward. For normal incident fields, a polarizer is electrically equivalent to parallel wave guides. The orientation of a waveguide depends on the direction of the polarization vector. The equivalent circuit of a typical polarizer is shown. In the equivalent circuit, a strip screen is equivalent to a lumped susceptance. In this paper are the formulation for this lumped susceptance, including the effects of the adjacent dielectric media presented. A finite element analysis of multilayered screen polarizer is outlined. Finally, electrical performance of a two layered polarizer is shown.