Miniaturized Wideband MIMO Antenna based on Hybrid Isolation Technique
Abstract
A compact wideband two-port multi-input-multi-output (MIMO) antenna for 5G sub-6 communication is proposed in this research. The MIMO antenna consists of a coplanar waveguide and a Moore fractal based on the second iteration, comprising two T-stub shapes designed to achieve the desired frequency band and enhance the capacitive coupling effect. To improve the return loss and isolation between the two elements, closed rectangular ring metamaterials and a neutralization line are incorporated, resonating across 2.7β5.3 GHz (2.55 GHz) with high isolation below -20 dB for the entire frequency band. The proposed antenna has dimensions of 31Γ50 πππ with thicknessof 1.6mm. The suggested MIMO design is fabricated using low-cost FR4, and its S-parameters, gain, and radiation patterns are measured. Simulation and fabrication measurements demonstrate an envelope correlation coefficient below 0.005, indicating excellent spatial diversity performance. Additionally, the capacity loss is found to be less than 0.3 b/s/Hz, highlighting the antenna's efficiency in maximizing data transmission rates for 5G sub-6 communication.
Keywords
antenna, MIMO, isolation techniques, wideband, energy
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
A. Al-Tameemi, G. Hock, T. Kiong, T. Al-Shaikhli, M. Al Ani and M. K. Al Ani, "Miniaturized Wideband MIMO Antenna based on Hybrid Isolation Technique," in Journal of Communications Software and Systems, vol. 21, no. 1, pp. 100-108, March 2025, doi: https://doi.org/10.24138/jcomss-2024-0077
@article{al-tameemi2025miniaturizedwideband,
author = {Ahmed Read Al-Tameemi and Goh Chin Hock and Tiong Sieh Kiong and Taha Raad Al-Shaikhli and Mohammed S. Al Ani and Mohammad A. K. Al Ani},
title = {Miniaturized Wideband MIMO Antenna based on Hybrid Isolation Technique},
journal = {Journal of Communications Software and Systems},
month = {3},
year = {2025},
volume = {21},
number = {1},
pages = {100--108},
doi = {https://doi.org/10.24138/jcomss-2024-0077},
url = {https://doi.org/https://doi.org/10.24138/jcomss-2024-0077}
}