Design and Implementation of Wideband Microstrip Antenna by Using Modified Ground Plane for High Gain 5G Applications

The rapid evolution of wireless communication technologies has driven the need for advanced antenna solutions, particularly for high-frequency bands such as those designated for 5G networks. In this study, a wideband microstrip antenna with a modified ground plane is designed, simulated, and implemented, optimized for high-gain performance in 5G applications. The circular microstrip patch antenna has a physical dimension of 50 x 34 mm and a radius of 16 mm. Design circular microstrip antenna is multi-band operational. The antenna's performance investigation was conducted through the use of High Frequency Structure Simulator (HFSS) software. According to the measurement results, the suggested circular antenna obtains a reflection coefficient (S11) of approximately -24.7475 dB, -44.8216 dB, and -40.3836 dB at 2.4GHz, 4.9GHz, and 6.3GHz, respectively, with a return loss better than -14 dB across the operational bands.