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A Dual Wide-Band Mushroom-Shaped Dielectric Antenna for 5G Sub-6-GHz and mm-Wave Bands

Reza Shamsaee Malfajani, Hamed Niknam, Sampada Bodkhe, Daniel Therriault, Jean-Jacques Laurin and Mohammad S. Sharawi

Article (2023)

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Résumé

The design and implementation of a dual wide-band mushroom-shaped antenna are presented in this paper. The antenna consists of a cylindrical dielectric resonator (cDRA), a cylindrical dielectric rod as a waveguide (cDR), and a dielectric lens (DL). The cDRA in conjunction with the DL acts as a sub-6-GHz antenna. At the mm-wave band, the small cDR acts as a waveguide, which transfers the wave from the feed toward the larger cDRA and the DL in order to produce a high gain. A dual wide-band antenna is designed and fabricated with different dielectric constants for the cDRA/cDR and the DL. 3D printing is utilized to precisely control the dielectric constant of printed component. Measurement results show a maximum gain of 6.4 dB at 5.3 GHz with a 21% 3-dB gain bandwidth and 12.7 dB at 31.5 GHz with a 26.2% 3-dB gain bandwidth. The sub-6-GHz band exhibits a measured 10-dB return loss bandwidth of 21% (centered at 5.15 GHz), and the mm-wave frequency band demonstrates a measured 10-dB return loss bandwidth of 26.2% (centered at 30.5 GHz).

Uncontrolled Keywords

3D printed antenna, cavity backed, dielectric lens, dielectric resonator antenna, dual-band, wideband antenna.

Subjects: 2100 Mechanical engineering > 2100 Mechanical engineering
2500 Electrical and electronic engineering > 2500 Electrical and electronic engineering
Department: Department of Electrical Engineering
Department of Mechanical Engineering
Funders: Fonds de recherche du Québec – Nature et technologies
Grant number: 2022-PR-298793
PolyPublie URL: https://publications.polymtl.ca/54362/
Journal Title: IEEE Open Journal of Antennas and Propagation (vol. 4)
Publisher: Institute of Electrical and Electronics Engineers
DOI: 10.1109/ojap.2023.3292390
Official URL: https://doi.org/10.1109/ojap.2023.3292390
Date Deposited: 15 Sep 2023 15:50
Last Modified: 17 Sep 2023 20:23
Cite in APA 7: Malfajani, R. S., Niknam, H., Bodkhe, S., Therriault, D., Laurin, J.-J., & Sharawi, M. S. (2023). A Dual Wide-Band Mushroom-Shaped Dielectric Antenna for 5G Sub-6-GHz and mm-Wave Bands. IEEE Open Journal of Antennas and Propagation, 4, 614-625. https://doi.org/10.1109/ojap.2023.3292390

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