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A novel ultra-wideband end-fire antenna based on spoof surface plasma polaritons

  • Bao Yan , Wang You-bao EMAIL logo , Zhang Tian-hao and Zhao Liu-yisi
Published/Copyright: October 28, 2024
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Abstract

A novel ultra-wideband end-shot antenna based on artificial surface-isolated excitations (SSPP) is designed. The antenna adopts a coplanar waveguide structure and introduces an SSPP transmission line consisting of a symmetric exponential Gaussian curve reference ground and an elliptical aperture-type cell, which effectively improves the bandwidth of the SSPP antenna and realizes the high-frequency operating characteristics of this antenna. In addition, the design combines the asymmetric structure of the SSPP transmission line and the guided branch structure to enhance the directivity of the antenna. The measured results of the antenna show that the antenna operates in the bandwidth range of 21.5–34.0 GHz, and the average gain of the antenna in the whole operating bandwidth range reaches 9.4 dBi, and the average radiation efficiency is 92.6 %, which can be better applied in the field of high-frequency communication.


Corresponding author: Wang You-bao, Nanjing University of Information Science & Technology, Nanjing 210044, China, E-mail:

  1. Research ethics: Not applicable.

  2. Informed consent: Informed consent was obtained from all individuals included in this study, or their legal guardians or wards.

  3. Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Use of Large Language Models, AI and Machine Learning Tools: None declared.

  5. Conflict of interest: The authors state no conflict of interest.

  6. Research funding: None declared.

  7. Data availability: Not applicable.

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Received: 2024-04-26
Accepted: 2024-09-16
Published Online: 2024-10-28
Published in Print: 2025-01-29

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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