Dielectric resonator loaded substrate integrated waveguide cavity backed slot antenna for bandwidth enhancement

In this paper, a substrate integrated waveguide cavity backed slot antenna with dielectric resonator loading in X-Band is presented. With loading, enhanced impedance bandwidth (S
₁₁
<; -10 dB) of about 11.74% is obtained without much affecting its gain and radiation pattern. The peak gain of proposed antenna is about 5.6 dBi with maximum cross polarized radiation level of -30 dB. The simulation of proposed antenna is carried out in Ansys HFSS.