A Compact and Efficient U Slot Excited Substrate Integrated Waveguide Based Antenna for 5G-NR Millimeter Wave Band

Authors

  • Nida Nasir Faculty of Electrical Engineering, Universiti Teknologi Malaysia, UTM Skudai, 81310, Johor, Malaysia
  • Mohd Haizal Bin Jamaluddin Faculty of Electrical Engineering, Universiti Teknologi Malaysia, UTM Skudai, 81310, Johor, Malaysia
  • Nor Hidayu Shahadan Electrical Engineering Department Politeknik Ibrahim Sultan. Pasir Gudang, Johor, Malaysia
  • Noor Azwan Shairi Fakulti Teknologi, Kejuruteraan Elektronik, Dan Komputer, Universiti Teknikal Melaka, Malaysia (UTeM)

Keywords:

5G-NR, U-slot, broadband, higher order mode, millimeter (mm) wave, Cubical Dielectric Resonator Antenna (CubDRA), Substrate Integrated Waveguide (SIW)

Abstract

In the article, a cubical dielectric resonator antenna is excited through a U-slot aperture utilizing a Substrate Integrated Waveguide feeding mechanism. This antenna works in three different frequency bands of the millimeter range, 25.8, 27.5, and 30.4 GHz, targeting the 5G-NR bands, N257, and N258. The simulated antenna produces a substantial bandwidth of 6.12 GHz (25-31.12 GHz), a peak elevated gain of 8.9 dBi with 98% efficiency. The radiation patterns indicate the absence of backside radiation, validating the broadside transmission of the proposed antenna. All simulations for antenna design were carried out using Ansys HFSS, confirming the antenna’s suitability for high-performance 5G wireless communication systems, including applications in indoor environments, IoT infrastructure, and smart mobility platforms.

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Published

29-12-2025

Issue

Vol. 17 No. 6 (2025): Special Issue : Electrical Engineering

Section

Special Issue 2025: MJWRT2024 (E)

License

Copyright (c) 2025 International Journal of Integrated Engineering

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Open access licenses

Open Access is by licensing the content with a Creative Commons (CC) license. 

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

 

How to Cite

Nasir, N., Bin Jamaluddin, M. H., Shahadan, N. H., & Shairi, N. A. (2025). A Compact and Efficient U Slot Excited Substrate Integrated Waveguide Based Antenna for 5G-NR Millimeter Wave Band. International Journal of Integrated Engineering, 17(6), 58-70. https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/21845