Integrated LTE and Millimeter-Wave 5G MIMO Antenna System for 4G/5G Wireless Terminals

Syeda Iffat Naqvi; Niamat Hussain; Amjad Iqbal; MuhibUr Rahman; Masoud Forsat; Seyed Sajad Mirjavadi; Yasar Amin

doi:10.3390/s20143926

Integrated LTE and Millimeter-Wave 5G MIMO Antenna System for 4G/5G Wireless Terminals

Sensors (Basel). 2020 Jul 15;20(14):3926. doi: 10.3390/s20143926.

Authors

Syeda Iffat Naqvi¹, Niamat Hussain², Amjad Iqbal^{3

4}, MuhibUr Rahman⁵, Masoud Forsat⁶, Seyed Sajad Mirjavadi⁶, Yasar Amin¹

Affiliations

¹ ACTSENA Research Group, Department of Telecommunication Engineering, University of Engineering and Technology, Taxila, Punjab 47050, Pakistan.
² Department of Computer and Communication Engineering, Chungbuk National University, Cheongju 28644, Korea.
³ Centre for Wireless Technology, Faculty of Engineering, Multimedia University, Cyberjaya 63100, Malaysia.
⁴ Department of Electrical Engineering, CECOS University of IT and Emerging Sciences, Peshawar 25000, Pakistan.
⁵ Department of Electrical Engineering, Polytechnique Montreal, Montreal, QC H3T 1J4, Canada.
⁶ Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, P.O. Box 2713 Doha, Qatar.

Abstract

This work demonstrates an integrated multiple-input multiple-output (MIMO) antenna solution for Long Term Evolution (LTE) and Millimeter-Wave (mm-wave) 5G wireless communication services. The proposed structure is comprised of a two-element LTE MIMO antenna, and a four-element 5G MIMO configuration with rectangular and circular defects in the ground plane. For experimental validation, the proposed structure is fabricated on a Rogers RO4350B substrate with 0.76 mm thickness. The overall substrate dimensions are 75 mm × 110 mm. The proposed structure is capable of operating at 5.29-6.12 GHz (LTE 46 and 47 bands) and 26-29.5 GHz (5G mm-wave) frequency bands. Additionally, the measured peak gain of 5.13 and 9.53 dB is attained respectively for the microwave and mm-wave antennas. Furthermore, the analysis of the MIMO performance metrics demonstrates good characteristics, and excellent field correlation performance across the operating bands. Furthermore, the analysis of the Specific Absorption Rate (SAR) and Power Density (PD) at the lower frequency band (5.9 GHz) and PD only at mm-Wave frequency band (28 GHz) verifies that the proposed antenna system satisfies the international human safety standards. Therefore, the proposed integrated MIMO antenna configuration ascertains to be a potential contender for the forthcoming communication applications.

Keywords: Long-Term Evolution (LTE); array; fifth-generation (5G); fourth-generation (4G); millimeter-wave (mm-wave); multiple-input-multiple-output (MIMO).