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sis 25(2):

Research Article

Design and Simulation of Quasi-microstrip Yagi Antenna in Railway Mobile Communication

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  • @ARTICLE{10.4108/eetsis.7029,
        author={Junhua Shao and Qiang Li and Junmei Tan},
        title={Design and Simulation of Quasi-microstrip Yagi Antenna in Railway Mobile Communication},
        journal={EAI Endorsed Transactions on Scalable Information Systems},
        volume={12},
        number={2},
        publisher={EAI},
        journal_a={SIS},
        year={2025},
        month={4},
        keywords={microstrip antenna, Yagi antenna, HFSS simulation, return loss, gain},
        doi={10.4108/eetsis.7029}
    }
    
  • Junhua Shao
    Qiang Li
    Junmei Tan
    Year: 2025
    Design and Simulation of Quasi-microstrip Yagi Antenna in Railway Mobile Communication
    SIS
    EAI
    DOI: 10.4108/eetsis.7029
Junhua Shao1,*, Qiang Li1, Junmei Tan1
  • 1: Lanzhou Jiaotong University
*Contact email: shaojunhua@lzjtu.edu.cn

Abstract

PROBLEM STATEMENT: The performance and size constraints of the current railway mobile communication systems force the development of more effective communication methods. OBJECTIVES: This study aims to build a quasi-microstrip Yagi antenna with a 900MHz centre frequency that minimizes the antenna's physical dimensions and improves communication capabilities between trains. METHODS: HFSS simulation was used during the design phase to optimize the antenna's characteristics, which included bending the active oscillator to increase gain. Important performance indicators were assessed, including voltage standing wave ratio (VSWR), bandwidth, and return loss. RESULTS: The optimized antenna produced a VSWR of less than 2, a maximum gain of 8.35dB, a bandwidth of 105MHz (spanning from 845MHz to 950MHz), and a return loss of -19.49dB at the centre frequency. According to these results, the antenna satisfies the operating criteria for railway mobile communication. CONCLUSION: The quasi-microstrip Yagi antenna proves useful in engineering applications since it not only meets the communication requirements of railway systems but also shrinks considerably in size compared to conventional Yagi antennas.

Keywords
microstrip antenna, Yagi antenna, HFSS simulation, return loss, gain
Received
2025-04-11
Accepted
2025-04-11
Published
2025-04-11
Publisher
EAI
http://dx.doi.org/10.4108/eetsis.7029

Copyright © 2025 J. Shao et al., licensed to EAI. This is an open-access article distributed under the terms of the CC BY-NC-SA 4.0, which permits copying, redistributing, remixing, transformation, and building upon the material in any medium so long as the original work is properly cited.

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