Wideband end-fire antenna based on modulated grooved surface plasmon polaritons
journal contribution
posted on 2025-08-05, 16:00 authored by Amitkumar PatelAmitkumar Patel, Aakash BansalAakash Bansal, Chinthana PanagamuwaChinthana Panagamuwa, William WhittowWilliam Whittow<p dir="ltr">This article presents low-profile wideband millimeter-wave (mmWave) end-fire antenna based on groundless grooved spoof surface plasmon polaritons (SSPPs) technique for applications in 5G mmWave communications. A novel linearly modulated grooved profile has been designed and optimized to convert bounded SSPP modes into radiation modes. The proposed groundless modulated grooved profile is designed to achieve a zero tilting and highly directional beam in the end-fire direction. A semi-curvilinear ground profile and stepped impedance transition profile are designed to improve impedance matching, which simultaneously enable wide bandwidth of 22 GHz to 41 GHz, i.e., fractional bandwidth (FBW) of 62% with a peak gain of 13 dBi in a low-profile structure. The overall form-factor of the antenna is 5 λ0 × 0.9 λ0 × 0.016λ0( where λ0 is the wavelength in free space at the center frequency). The high directivity, low-profile and lightweight structure of the antenna makes it highly suitable for applications in mmWave communications.</p>
Funding
Transparent Transmitters and Programmable Metasurfaces for Transport and Beyond-5G (TRANSMETA)
Engineering and Physical Sciences Research Council
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- 1. DOI - Is identical to Wideband end-fire antenna based on modulated grooved surface plasmon polaritons
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- Mechanical, Electrical and Manufacturing Engineering
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Scientific ReportsVolume
15Article number
25144Publisher
Springer ScienceVersion
- VoR (Version of Record)
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© The Author(s)Publisher statement
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.Acceptance date
2025-07-04Publication date
2025-07-11Copyright date
2025eISSN
2045-2322Publisher version
Language
- en
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Dr Amitkumar Patel. Deposit date: 28 July 2025Usage metrics
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