Magneto-inductive phase-shifters and interferometers

► Analytic expressions are presented for phase shifts in magneto-inductive devices. ► Experimental phase shifts are measured using magneto-inductive cable loaded with high-permeability magnetic material. ► Interference of magneto-inductive wave is demonstrated using Mach-Zehnder interferometer structures. ► Controllable switching of magneto-inductive waves between two output ports is demonstrated.