Attenuation of Magnetostatic Surface Waves in a Superconductor-Ferrite Structure

Abstract

A theoretical study of the propagation of the magnetostic surface waves (WSSW) in a layered structure consisting of a gyromagnetic yttirum iron garnet (YIG) film bounded by a YBa2Cu3O7−x superconductor cover is presented. The complex wave number of magnetostatic surface waves is computed by solving the dispersion equation using Davedinko's technique in order to find out the effect of a superconductor on the attenuation losses of the structure. It has been found that the superconductor has the ability to reduced the propagation losses, which that very promising results in designing some future microwave devices.