Abstract
A dual-band multiple-input multiple-output (MIMO) antenna for wireless local area network (WLAN) and fifth-generation new radio (5G NR) band n104 applications is presented. Two U-shaped slots interconnected back to back are etched on an elliptical shaped patch, four identical patch elements are then arranged orthogonally to form a quad-port antenna that resonates at 5.8 GHz and 6.7 GHz. Without additional extrinsic decoupling structures, the proposed design achieves measured isolation levels above 25.13 dB and 21.31dB, realized gains of 7 dBi and 7.2 dBi and -10 dB impedance bandwidths of 155.4 MHz and 90 MHz in the lower and upper frequency bands, respectively. The measured envelope correlation coefficient (ECC) values are 0.03 and 0.05, below the 0.5 limit, while the diversity gain (DG) values are 9.995 dB and 9.985 dB, close to the theoretical maximum of 10 dB. The simulated and measured results show good agreement, validating the proposed design.
Recommended Citation
Kimaro, L. L., Iddi, H. U., Kissaka, M. M., & Joseph, N. S. (2026). A Quad-Port Dual-Band Elliptical Patch MIMO Antenna for 5G and WLAN Applications. Tanzania Journal of Engineering and Technology (TJET), 45(2), 99-109. https://doi.org/10.65085/2619-8789. 1287
Publisher Name
University of Dar es Salaam