Design and Analysis of Microstrip Antenna Using Double Slot Patch At 28 GHz Frequency for 5G Technology

The advancement of telecommunication technology has increased the number of wirelessly connected devices, leading to a surge in data traffic. Fifth-generation (5G) technology utilizes millimeter waves at a 28 GHz frequency to support extensive connectivity and high data transmission rates. However, these high frequencies face challenges, such as limited signal range. This study aims to design and analyze microstrip antennas with 8×8 and 16×16 configurations using a dual-slot method (T-slot and U-slot) to enhance antenna performance, particularly bandwidth and gain. The design approach involved simulations using CST Suite Studio software. The simulation results show that the 8×8 antenna achieved a return loss of -29.40 dB, a VSWR of 1.07, a bandwidth of 1.4 GHz, and a gain of 15.6 dBi. Meanwhile, the 16×16 antenna achieved a return loss of -35.95 dB, a VSWR of 1.03, a bandwidth of 1.44 GHz, and a gain of 18.6 dBi. These results demonstrate that increasing the number of antenna elements and applying dual-slot techniques significantly improves performance, making it a potential solution for 5G communication systems requiring stronger signals and wider coverage.