Biaxial anisotropic sample design and rectangular to square waveguide material characterization system

An electrically biaxial anisotropic sample design methodology utilizing crystal-lographic symmetry is discussed. Sample synthesis equations based on equivalent capacitance analysis translate desired permittivity values and host materials to sample cell dimensions and are subsequently fabricated on a 3-D printer. Equivalent capacitance predictions yield permittivity tensor element values comparable to simulation results. A rectangular to square waveguide measurement system is also used to verify the sample design methodology.