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Split Rectangular Loop Resonator Inspired MIMO Monopoles for GSM/LTE/WLAN Applications

Adamu Halilu Jabire , Hong-Xing Zheng, Anas Abdu
School of Electronics and Information Engineering, Hebei University of Technology, Tianjin 300401, China
Abstract—A circular form multiple-input-multiple-output (MIMO) microstrip antenna systems operating in Global system for mobile (GSM), Long Term Evolution (LTE) and Wireless Local Area Network (WLAN) bands (1.2 to 2.7GHz) is presented. The system is comprised of two antennas placed parallel to each other. Initially, a dual band (1.2 and 2GHz) antenna is designed by etching a two rectangular slits on top of the two radiating elements. In order to have a wideband/multiband operations and enhance the isolation between the two antennas a split rectangular loop resonators and a long stub is placed in the space between the two antenna elements. More than 20dB isolation between the array elements is attained at the resonant frequency for the configurations. A sample was constructed to verify the design concept and to validate the simulated results.

Index Terms—Rectangular loop resonator, Multiple-Input-Multiple-Output (MIMO), mutual coupling, diversity gain, refractive index.

Cite: Adamu Halilu Jabire, Hong-Xing Zheng, and Anas Abdu, "Split Rectangular Loop Resonator Inspired MIMO Monopoles for GSM/LTE/WLAN Applications," Journal of Communications, vol. 14, no. 6, pp. 511-517, 2019. Doi: 10.12720/jcm.14.6.511-517.
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