Transient analysis of electromagnetic wave interactions on ferrite structures using Landau-Lifshitz-Gilbert and volume integral equations

Magnetization of a ferrite can be dynamically tuned using a biasing DC magnetic field. This makes ferrites a good choice of substrate for reconfigurable microwave devices and antenna designs. For example, antenna patterns and resonance frequencies can be shifted by adjusting the biasing DC magnetic field during the operation of the antenna or the device (A. Ustinov et al., Appl. Phys. Lett., 90, (031913), 2007).