Fig. 4From: High-permittivity ceramics enabled highly homogeneous zero-index metamaterials for high-directivity antennas and beyondExperimental and simulated results of ZIM. a Photograph of the ZIM sample with two taper waveguides as input and output. b Simulated and measured effective relative permittivity and permeability. c, d Simulated and measured near-field distributions over the top surface of the ZIMBack to article page