T-SHAPED MIMO ANTENNA DESIGN WITH DEFECTED GROUND STRUCTURE AND PARASITIC ELEMENTS FOR 5G APPLICATION

Sari

The 5G technology is developed to address various challenges in enhancing network efficiency and capacity, increasing data rates and coverage while maintaining low power consumption. Therefore, it is essential to design suitable antennas for 5G wireless communication to achieve greater bandwidth, optimal radiation patterns, high antenna efficiency, and good performance. Multiple-input-multiple-output (MIMO) utilizes several transmitting and receiving antennas to enhance multipath propagation. However, one of the main challenges in MIMO antenna design is minimizing the effects of mutual coupling that occur due to the proximity of antenna elements. In this study, MIMO antenna is designed using T-Shaped DGS Technique and parasitic elements. The DGS technique is developed by creating a specific area on the ground plane of the antenna to improve its performance. By incorporating DGS concepts and parasitic elements into the design, the aim is to achieve large bandwidth and high gain. This antenna has dimensions of 52 mm x 12 mm and is simulated using Ansys HFSS software. Measurement results for the antenna using Rogers Duroid RT5880 substrate show a mutual coupling value of -54.2 dB, return loss of -11.1 dB, gain of 13.11 dB, and a sufficiently wide bandwidth. Thus, the proposed antenna can operate at a frequency of 28 GHz, meeting the requirements for 5G applications.