Design of a Novel Sub-THz Dielectric Resonator Antenna Fed by Substrate Integrated Image Guide (SIIG) Technology

This paper presents a novel dielectric resonator antenna (DRA) design with an
$\text{HEM}_{11\delta}$
mode fed by a substrate integrated image guide (SIIG) operating at Sub-THz frequency bands. The proposed antenna operates over the wideband frequency range of 156–177 GHz and covers −10 dB impedance bandwidth of 21 GHz. In addition, the average gain of the proposed DRA is 7.35 dBi in the broadside direction, with a peak gain of 8.5 dBi at 163 GHz. The designed antenna can be applied in Sub-THz wireless communication applications with competitive performance and low-cost fabrication technology.