A wideband circularly polarized bird nest antenna with dielectric resonator ring is designed. This structure consists of a dielectric resonator ring with probe at the center of the circular ground plane which act as a monopole and it surrounded by a number of dielectric slabs. Here the dielectric slabs are used to convert the linearly polarized wave produced by the monopole to the circularly polarized wave. Since the structure of antenna look like a bird nest, it is called bird nest antenna. The reflection coefficient, axial ratio (AR), radiation pattern, gain and VSWR of the antenna were simulated using Ansoft HFSS. The 10 dB impedance bandwidth and 3 dB axial ratio bandwidth provided by the antenna is 57% and 48% respectively. Maximum gain provided by this antenna is 5.25dBi.
