Synthesis procedure for, and characteristics of, one-port linear magnetoelastic dispersors

Abstract

The necessity of an internal magnetic field with spatially constant gradient for a linear frequency–time delay property of θ = 0 magnetoelastic waves is demonstrated, and certain limitations on achievable time–bandwidth product are formulated. The internal-field configuration is approximated using a composite single-crystal/polycrystalline ferrimagnetic structure, and comparisons between theory and practice are drawn.