Fast Analysis of FSS Loaded Antennas Based on Generalized Sheet Transition Conditions

Abstract

A fast analysis method based on the generalized sheet transition condition (GSTC) is proposed for frequency selective surface(FSS) loaded antennas in this paper. In this method, the physical structure of the FSS is replaced with its corresponding impedance surface to avoid extremely dense meshes in full-wave simulations. A FSS loaded low profile antenna is considered as an example to validate the efficiency and accuracy of the method. Numerical results demonstrate good agreement between the fast analysis method and the conventional full-wave simulations. It is also found that the number of meshes and the simulation time are significantly reduced in the proposed fast analysis method.