Measured mutual coupling; between cylindrical dielectric resonator antennas

The measured results of mutual coupling between two low-profile, very-high-permittivity circular disk dielectric resonator (DR) antennas have been presented. The circular disk DR antennas are excited using a coplanar waveguide feed in this study. Results show that, in terms of the dependence on the edge spacing between two antennas, the mutual coupling behavior of the circular disk DR antennas is similar to that of circular microstrip antennas. However, the mutual coupling level for the circular disk DR antennas is much greater than that of the circular microstrip patch antennas.