THz Dielectric Resonator Antenna with Rectangular Waveguide Slot Feed

A dielectric resonator antenna with a direct rectangular waveguide slot feed in the WR-1.5 frequency range is presented. The antenna, based on laser-processed components, achieves a radiation efficiency of 72 %, an impedance bandwidth of 6.5 %, and a peak gain of 7.8 dBi. Free space measurements are performed for antenna characterization.