Design of a Circular Microstrip Patch Antenna with High Gain for 5G Applications using 5G Millimeter Wave Bands Comparing to Rectangular Microstrip Patch Antenna

The aim of the study is to design a high gain circular and rectangular microstrip patch antenna using 5G millimeter wave bands at a 3 GHz resonant frequency. Materials and methods: The circular patch antenna has been designed with FR4 substrate using dielectric constant 2.2 and thickness of the substrate is 3.18 mm. The sample size of the circular microstrip antenna and rectangular microstrip antenna is 10 each. There are 20 samples, and the pretest power is 80 % with a 0.05 error correction. Results: The gain of the circular patch antenna using innovative antenna design and FEKO Software is 10.0 dB when compared with the rectangular patch antenna of 5.0 dB. It is noteworthy that the two groups differ significantly, due to the fact that p is less than 0.05. Conclusion: The study found that circular patch antennas have a higher gain than rectangular patch antennas.