Title: Reconfigurable sub-6 GHz 5G user-terminal MIMO antenna integrated with ISM 2.4 GHz band

Authors: Varsharani Madhukar Lad; Kshama Vishwanath Kulhalli; Jayendra Kumar

Addresses: Department of Technology, Shivaji University, Maharashtra – 416004, India ' Department of Computer Science and Engineering, D.Y. Patil College of Engineering and Technology, Kolhapur, Maharashtra – 416006, India ' School of Electronics Engineering, VIT-AP University, Amaravathi, Andhra Pradesh – 522237, India

Abstract: In this paper, a two-element, the two-mode reconfigurable multiple-input-multiple-output antenna is reported. The antenna is designed for the 5G 3.5 GHz and ISM 2.45 GHz integrated services. The antenna radiators are meander line-inspired and investigated for different configurations onboard to ensure self-isolation. The switching is realised using a single pin diode-based active circuit. The prototype of the antenna exhibits good impedance matching better than -10 dB, a reasonable gain of 1.2 dBi in ISM 2.4 GHz and 1.8 dBi in 3.5 5G bands and co and cross-polarisation isolation of above -15 dB. The optimised position and orientation of the two antenna elements exhibit excellent self-isolation of 27.6 dB ensuring better MIMO performance parameters with better coverage. The matching between simulation and measurement results are appreciable.

Keywords: 5G; meander-line; MIMO antenna; reconfigurable antenna; user terminal antenna.

DOI: 10.1504/IJUWBCS.2022.126776

International Journal of Ultra Wideband Communications and Systems, 2022 Vol.5 No.3, pp.136 - 141

Received: 18 Oct 2021
Accepted: 06 Dec 2021
Published online: 07 Nov 2022 *

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