Abstract
5G communication systems are emerging due to the need for faster data rates and larger bandwidths. 5G require systems that of low profile, light weight and capable of achieving high bandwidths to ensure high efficiency. The 28GHz frequency band was selected for the study due to the low atmospheric absorption around this frequency and cost-effectiveness. The study presented a single element low profile microstrip antenna operating in the 28GHz frequency band. The proposed antenna was printed on a Rogers RT5880 substrate with dielectric constant of 2.2 and a loss tangent of 0.0009. The antenna consists of a rectangular radiating patch fed by a 50Ω microstrip line. In other to increase the gain of this antenna while maintaining a low compact profile, four rectangular-shaped slots were introduced on the patch. The positions of these slots were optimized using Computer simulation technology (CST) software. The antenna provided a gain of 7.67 dB with return loss of above −30dB. The antenna showed good radiation characteristics with radiation efficiency of 98% and achieved high bandwidth up to 2GHz.
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