An All-Metal Broadband Low SLL slot array antenna for use in 5G Sub-6 GHz networks

This paper describes the design and implementation of an all-metal wideband cavity-backed slot array antenna specifically optimized for 5G sub-6 GHz networks. The antenna is engineered to feature low sidelobe levels (SLL), which enhance signal clarity and reduce interference. The proposed antenna ut...

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Bibliographic Details
Published in:Scientific reports Vol. 15; no. 1; pp. 6004 - 12
Main Authors: Zarifi, Davood, Farahbakhsh, Ali, Mrozowski, Michal
Format: Journal Article
Language:English
Published: London Nature Publishing Group UK 19.02.2025
Nature Publishing Group
Nature Portfolio
Subjects:
639/166/987
639/766/25
Antennas
Humanities and Social Sciences
multidisciplinary
Science
Science (multidisciplinary)
ISSN:2045-2322, 2045-2322
Online Access:Get full text
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Summary:This paper describes the design and implementation of an all-metal wideband cavity-backed slot array antenna specifically optimized for 5G sub-6 GHz networks. The antenna is engineered to feature low sidelobe levels (SLL), which enhance signal clarity and reduce interference. The proposed antenna utilizes a novel approach, directly exciting all radiating slots through the cavity layer, thus eliminating the need for a complex and lossy power dividing network. The antenna’s performance is validated through full-wave simulations and measurements. The results demonstrate antenna’s ability to achieve wideband operation from 3.1 to 4 GHz with − 19 dB SLL, peak gain of 20.2 dBi, and more than 90% total efficiency. The main advantages provided by the proposed slot arrays are wide bandwidth, high radiation efficiency, high gain, low sidelobe levels. The all-metal construction ensures robust power handling, and the simplified design contributes to its low complexity. These characteristics make the antenna a promising candidate for 5G deployments.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-025-90696-8