Electrically Small Resonator Design for Characterization of Magnetodielectric Materials

Abstract

Performance of electrically small resonators in characterization of permeability is studied under permittivity variations. It is shown that commonly used complementary split ring resonator (CSRR) structure is prone to large errors when permittivity varies. A modification strategy is provided to reduce the error and two new resonator designs are presented for permeability characterization. It is shown that new resonator designs reduce the error due to permittivity variations by 79%.