Enhanced rapid and accurate sub-THz magneto-optical characterization of hexaferrite ceramics

The work reported in this paper is the improvement of hexaferrite magneto-optic characterization by using a wideband vector-network-analyzer. Two methods employing a 45° wire grid polarizer for determining the cross-polarized transmittance of hexaferrite materials are presented, for the canceling of systematic errors attributed to cable movement during reconfiguration of the measurement circuit between co- and cross-polar operations. The revised methodology and ensuing measurement results are compared to those traditionally acquired.