Experimental Investigation of Empty Substrate Integrated Waveguide-Fed MMW Patch Antenna for 5G Applications

This paper presents the fabrication and experimental validation of an Empty Substrate Integrated Waveguide fed microstrip patch antenna for millimeter-wave frequencies, targeting at 28 GHz. The proposed antenna is fabricated and measured for both transverse and longitudinal slot configurations. The fabricated prototypes for both configurations are measured for experimental results in terms of return loss (∣S11∣), realized gain and efficiency. Good agreement between the simulated and measured results validate the design.