A Wideband Circularly Polarized Grounded Coplanar Waveguide Fed Rectangular Frustum Dielectric Resonator Antenna

摘要

In this paper, a wideband circularly polarized grounded coplanar waveguide (GCPW) fed rectangular frustum shaped dielectric resonator antenna (DRA) is presented for millimeter wave applications. In the proposed DRA, right circular polarization is excited by grounded coplanar waveguide (GCPW) inductive slot feeding, which is tilted 45°angles with respect to the side of dielectric resonator. The optimized simulated result shows that 3dB axial ratio bandwidth of 13.15% (24.13 - 27.55Hz, 3.42GHz) and impedance bandwidth of 26.7% (22.07 - 29.01GHz, 6.94GHz) can be obtained, respectively.