Design of a 2×2 dual band 28/38 GHz MIMO antenna in millimeter band for 5G

Salah-Eddine Didi (Sidi Mohamed Ben Abdellah University)
Imane Halkhams (UPF)
Mohammed Fattah (Moulay Ismail University)
Younes Balboul (Sidi Mohamed Ben Abdellah University)
Said Mazer (Sidi Mohamed Ben Abdellah University)
Moulhime El Bekkali (Sidi Mohamed Ben Abdellah University)

TELKOMNIKA (Telecommunication Computing Electronics and Control)
Vol 22, No 2: April 2024

In this paper, we design and simulate a 28/38 GHz dual-band multiple-input multiple-output (MIMO) patch antenna array that operates in the FR2 frequency band (28 GHz and 38 GHz). This antenna array comprises four similar patch antennas with a rectangular “L minus two slots” shape. In addition, it applies to 5G electronic components such as a smartphone. We used high-frequency structure simulator (HFSS) software to perform the design and simulation for this antenna. In addition, this proposed antenna array provides better performance, such as; bandwidth around 28 GHz is equal to 0.69 GHz and 38 GHz is equal to 0.86 GHz, equal gains 5. 9 dB at 28 GHz and 9 dB at 38 GHz, directivities are 6.3 dB at 28 GHz and 9.4 dB at 38 GHz, the efficiency of 95.38% at 28 GHz, and efficiency of 96.53% at 38 GHz.