A novel compact Cylindrical Dielectric Resonator Antenna with radiating slots for X-band applications

In this article, a hybrid combination of two resonating structures, one Cylindrical Dielectric Resonator Antenna (CDRA) and a modified slot geometry along with some more additional defects in ground plane (GP) has been proposed. Multiple resonances of the combination offer wide bandwidth over the complete X - band. A U-shaped microstrip feed is also incorporated in the proposed structure. The proposed design offers large impedance bandwidth (measured) about 45 % (S
₁₁
<; -10 dB) and a peak gain of about 4.5 dBi. Some hybrid modes of CDRA are also excited and addressed in the proposed structure.