A High-Gain Slotted Rectangular Microstrip Patch Antenna for 5G Millimeter-Wave Applications

Abstract

The fifth generation (5G) of telecommunications has been a compelling subject for several academics in recent years. A patch antenna has recently been used for 5G technology, which demands a communication connection with a high data rate and low latency. This article proposes a high-gain slotted microstrip patch antenna for 5G applications at the resonant frequency of 38 GHz. Rogers RT5580 material, with a dielectric permittivity of 2.2 and a loss tangent of 0.009, has been used as a substrate for the antenna. The antenna in concern has a compact construction with dimensions of 8×5.2×0.324 mm³. The slotted antenna's dimensions are optimized with the CST Studio Suite software simulator. The proposed antenna design achieved a reflection coefficient of -49.9 dB, a gain of 9.233 dBi, and a wide operational bandwidth of 1.84 GHz, which is the main objective of this study. The suggested antenna also demonstrated favorable performance at 37 GHz and 39 GHz by changing the length of the radiation patch. In comparison to previous similar designs reported in the literature, the proposed antenna has significantly higher bandwidth, return loss, beam gain, and radiation efficiency; therefore, it is a viable alternative for 5G communication.