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Design of a Dual-Polarized UWB 5G NR Antenna

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Abstract

In this paper, we propose a compact, planar, eight-port/four-resonator slot antenna array with a dual-polarized function for multiple-input-multiple-output (MIMO) 5G Smartphone Applications. The design is composed of four pairs of L-shaped microstrip fed slot antennas, located at the corners of the mobile terminals PCB. Each pair of antennas consists of a radiator with two concentric annular slots and two circular slotted. Due to the orthogonal arrangement of the feed lines, a function of polarization and diversity of the radiation pattern is provided. In order to reduce the mutual coupling characteristic of the antenna ports, we have inserted a rectangular slot under each microstrip feed line. The -10-dB impedance bandwidth of the proposed antenna array can completely cover the 5G Sub-6GHz NR frequency Bands n77/n78/n79, which includes the 5G band of US (3.55–4.2 GHz), China, EU and Japan (3.6–4.2 GHz, 4.4–4.9 GHz), as well as the LTE Band 46 (5.15–5.925 GHz). The proposed MIMO antenna offers good S-parameters, high-gain radiation patterns, and sufficient total efficiencies, even though it is arranged on a high-loss FR-4 dielectric. According to the reached results, the proposed MIMO antenna may be a suitable application-oriented design for 5G mobile communication.

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Acknowledgements

We are especially thank ful to Prof.Ali Gharsallah and all the members of the laboratory of the Faculty of Sciences of Tunis for the time and guidance given through this work.

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Authors and Affiliations

  1. Physics, Lab. CSEHF, University of Tunis El Manar Faculty of Sciences of Tunis, El Manar, 2092, Tunis, Tunisia

    Nizar Sghaier, Lassaad Latrach & Ali Gharsallah

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  1. Nizar Sghaier
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  2. Lassaad Latrach
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  3. Ali Gharsallah
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Correspondence to Nizar Sghaier.

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Sghaier, N., Latrach, L. & Gharsallah, A. Design of a Dual-Polarized UWB 5G NR Antenna. Wireless Pers Commun 123, 1293–1310 (2022). https://doi.org/10.1007/s11277-021-09181-w

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