Dispersion-Controlled Unidirectional Magnetoinductive Waves

We review our recent work on unidirectional wave guiding due to interference of magnetoinductive waves. We derive selectivity rules for switchable unidirectional signal guiding and demonstrate that they are governed by dispersion relations. Expanding our analysis to diatomic structures capable of carrying both forward and backward waves, we realise a frequency-controlled switching of unidirectional wave guidance. A variety of scenarios including both 1D and 2D structures, operating either in the MHz or in the THz frequency range will be presented, with Poynting vector analysis used for visualization of unidirectional signal propagation. Our analytical model will be verified with numerical simulations (THz) and experimental data (MHz).