28/38 GHz Dual-Band Microstrip Patch Antenna with DGS and Stub-Slot Configurations and Its 2×2 MIMO Antenna Design for 5G Wireless Communication
Mohammad Lutful Hakim, Mohammad Lutful Hakim, Mohammed Jashim Uddin, Mohammed Jashim Uddin, Md Jiabul Hoque, Md Jiabul Hoque
Abstract
The world is going to launch a very fast 5G wireless communication system, its main purpose is to achieve a highspeed data rate that is possible through millimeter-wave communication with wide bandwidth antenna. The microstrip patch antenna may be an elementary component of a radio channel that's specified among the most effective receiver transmitting structures, due to its low cost of assembly. This paper proposed a dual-band microstrip patch antenna with a wide bandwidth that works for 28 GHz and 38 GHz frequency bands. Defected Ground Structure (DGS) and stub slot configuration have been used to achieve wide bandwidth and dual-band, the overall size of the antenna is 8.25 × 9.69×0.45 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> , The proposed antenna exhibits a -10-dB impedance bandwidth of 5.13 GHz and 11.63 GHz, gain of 8.31 dB and 6.38 dB and 98% efficiency for both 28 and 38.5 GHz resonant frequency respectively. A 2×2 MIMO antenna also designed where isolation is less than -20 dB between different ports.