A frequency reconfigurable fan beam antenna array for C-band applications

https://doi.org/10.31130/ud-jst.2025.23(6A).192E

Tóm tắt: 53 | PDF: 32

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Author

  • Hoang Thi Phuong Thao
    Electric Power University, Hanoi, Vietnam

Từ khóa:

frequency reconfigurable antenna
PIN diodes
fan beam antenna

Tóm tắt

This paper proposed a frequency reconfigurable fan beam antenna array for C-band applications. The 1×4 antenna array is designed on a Roger 4003C substrate with a size of 60×130×0.8 mm3. The antenna can automatically switch between two frequency bands at the center frequencies of 4.2 GHz and 4.5 GHz by utilizing PIN diodes. The antenna obtains high peak gains in two states, 7.89 dBi at 4.2 GHz and 7.19 dBi at 4.5 GHz. The radiation efficiency of the antenna is 87 % and 89 % in states 1 and 2, respectively. Moreover, the antenna produces a narrow fan beam in the azimuth plane with 3 dB angular widths of 24o and 24.8o, and a broad fan beam in the elevation plane with a 3 dB angular width of 228o in two different states. With this fan beam characteristic, the antenna can be a suitable candidate for mobile networks and fixed mobile, radar, and monitoring applications in the C-band.

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Jun 30, 2025
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Thao, H. T. P. “A Frequency Reconfigurable Fan Beam Antenna Array for C-Band Applications”. Tạp Chí Khoa học Và Công nghệ - Đại học Đà Nẵng, vol 23, số p.h 6A, Tháng Sáu 2025, tr 1-6, doi:10.31130/ud-jst.2025.23(6A).192E.

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