A Novel Design for Polarization Control in CDRA using Integrated Cross-Slot and Annular-Slot Coupled Feeding

An integrated cross-slot-coupled and annular-slot-coupled is used to feed the cylindrical dielectric resonator antenna (CDRA) to control the polarization, which is demonstrated in this paper. Left-hand circular polarization (LHCP) or Right-hand circular polarization (RHCP) is operated by the proper selection of unequal lengths of cross-slot. On the other hand, Circular polarization (CP) or Linear polarization (LP) is achieved by choosing the proper width of the annular slot.
$\mathbf{HEM}_{11\delta}$
mode is used to generate the LHCP/RHCP and LP operation. Through the parametric study, optimum antenna designs are carried out using an HFSS-15 simulator for LHCP, RHCP, and LP based on the proposed theory.