High-gain miniaturized multi-band MIMO SSPP LWA for vehicular communications

Saeidi, Tale and Saleh, Sahar and Timmons, Nick Francis and McDaid, Christopher and Al Gburi, Ahmed Jamal Abdullah and Razzaz, Faroq and Karamzadeh, Saeid (2025) High-gain miniaturized multi-band MIMO SSPP LWA for vehicular communications. Technologies, 13 (2). pp. 1-35. ISSN 2227-7080

Text 027022104202515459.pdf Available under License Creative Commons Attribution. Download (2MB)

Abstract

This paper introduces a novel miniaturized, four-mode, semi-flexible leaky wave Multiple-Input Multiple-Output (MIMO) antenna specifically designed to advance vehicular communication systems. The proposed antenna addresses key challenges in 5G low- and high-frequency bands, including millimeter-wave communication, by integrating innovative features such as a periodic Spoof Surface Plasmon Polariton Transmission Line (SSPP-TL) and logarithmic-spiral-like semi-circular strip patches parasitically fed via orthogonal ports. These design elements facilitate stable impedance matching and wide impedance bandwidths across operating bands, which is essential for vehicular networks. The hybrid combination of leaky wave and SSPP structures, along with a defected wide-slot ground structure and backside meander lines, enhances radiation characteristics by reducing back and bidirectional radiation. Additionally, a naturalization network incorporating chamfered-edge meander lines minimizes mutual coupling and introduces a fourth radiation mode at 80 GHz. Compact in size (14 × 12 × 0.25 mm3), the antenna achieves high-performance metrics, including S11 < −18.34 dB, dual-polarization, peak directive gains of 11.6 dBi (free space) and 14.6 dBi (on vehicles), isolation > 27 dB, Channel Capacity Loss (CCL) < 3, Envelope Correlation Coefficient (ECC) < 0.001, axial ratio < 2.25, and diversity gain (DG) > 9.85 dB. Extensive testing across various vehicular scenarios confirms the antenna’s robustness for Vehicle-to-Vehicle (V2V), Vehicle-to-Pedestrian (V2P), and Vehicle-to-Infrastructure (V2I) communication. Its exceptional performance ensures seamless connectivity with mobile networks and enhances safety through Specific Absorption Rate (SAR) compliance. This compact, high-performance antenna is a transformative solution for connected and autonomous vehicles, addressing critical challenges in modern automotive communication networks and paving the way for reliable and efficient vehicular communication systems.

Item Type:	Article
Uncontrolled Keywords:	Vehicular communication, 5G, mm-wave, SSPP, MIMO LWA, Circular polarization
Divisions:	Faculty of Electrical and Electronic Engineering Technology
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	05 Dec 2025 03:53
Last Modified:	05 Dec 2025 03:53
URI:	http://eprints.utem.edu.my/id/eprint/29148
Statistic Details:	View Download Statistic

Actions (login required)

View Item