Investigations on impedance bandwidth and cross polarization of miniaturized dielectric-metallic resonator antennas

Due to rapid development of wireless applications, it is desirable to introduce antennas that can satisfy various design requirements. Based on mode analysis, a dielectric-metallic resonator antenna structure is proposed in this paper to achieve a wide range of antenna characteristics. The electric near-field distributions are studied and modified to present different far-field properties, impedance bandwidths, and miniaturization levels.