Dual‐band fan‐blade‐shaped circularly polarised dielectric resonator antenna

Abstract

This study presents a singly fed aperture coupled dual‐band circularly polarised dielectric resonator antenna (CPDRA). A fan‐blade‐shaped dielectric resonator is used to achieve the dual‐band circularly polarised response. The proposed CPDRA operates with the fundamental mode in lower band. The upper band response of the CPDRA can be tuned either with the second‐ or third‐order mode at different frequencies of C‐band. Also, the polarisation of antenna can be reversed with the change in operating higher order mode in upper band by varying the slot position.