Improvement in Bandwidths and Beamwidths of a Singly-Fed Circularly Polarized Rectangular Dielectric Resonator Antenna using Two Parasitic Elements

摘要

The circular polarization (CP) bandwidth and beamwidth of a rectangular dielectric resonator antenna (DRA) fed by a unique conformal metal strip has been enhanced using two parasitic elements. An increment of $sim 19$% in the axial ratio (AR) bandwidth and 47%24%17%$phi =0^{circ}phi =90^{circ}$ 105% 18%$56^{circ}phi =0^{circ}20^{circ}phi =90^{circ}$ plane. The DRA has been designed, simulated and optimized using the computer simulation technology (CST). Finite Integration Technique (FIT) in CST has been used to compute the results.