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Author: search.filters.author.Lang, Alongkorn

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    Gain Enhancement of a Dual-Band S-Patch Antenna Array for 5G Application
    (2025-04-01)
    Udomratanasiri, Dhanapon
    ;
    Kawdungta, Supakit
    ;
    Pansomboon, Rassamitut
    ;
    Lang, Alongkorn
    ;
    Phongcharoenpanich, Chuwong
    This paper proposes the dual-band S-patch antenna with gain enhancement by using the planar array configuration and dielectric superstrate. The design of the proposed antenna is focused on the base station antenna in the 5G frequency bands n41 (2.6 GHz) and n78 (3.5 GHz). The dual-band S-patch antenna is arranged in the 2 × 6 elements planar array antenna and the FR4 dielectric superstrate is on the top of the array. The simulated results indicated that the operating frequency of 2.55–2.65 GHz and 3.46–3.61 GHz with uni-directional radiation pattern. The antenna gain can be improved with 18.70 dBi at 2.6 GHz and 19.30 dBi at 3.5 GHz. The prototype antenna is fabricated and the measured results are in good agreement. With the simple design of the proposed antenna, it would be useful for the installation of the base station antenna.
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    Compact High-Gain Dual-band Patch Antenna With Dielectric Superstrate for Wi-Fi 6 Applications
    (2023-01-01)
    Muangrung, Bhuwakorndit
    ;
    Lang, Alongkorn
    ;
    Torrungrueng, Danai
    ;
    Phongcharoenpanich, Chuwong
    ;
    Kawdungta, Supakit
    The compact high-gain dual-band double circular patch antenna with dielectric superstrate is introduced for Wi-Fi 6 applications. The double circular patch antenna can be operated at two frequency bands of 2.41-2.54 GHz and 4.94-6.03 GHz. The dielectric superstrate and parasitic patches are employed in front of the antenna to enhance the antenna gain. From simulated results, the dielectric superstrate and parasitic patches can improve the antenna gain. The proposed antenna has |S11| less than-10 dB in both operating frequency bands, unidirectional radiation pattern, and gain of 4.8 dBi at 2.45 GHz and 4.57 dBi at 5.5 GHz.
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    Design of antenna arrays by using modified fruit fly optimization algorithm
    (2021-05-19)
    Kawdungta, Supakit
    ;
    Torrungrueng, Danai
    ;
    Lang, Alongkorn
    ;
    Phongcharoenpanich, Chuwong
    This research paper proposed the modified fruit fly optimization algorithm (MFOA) to design antenna arrays. The MFOA is used to estimate parameters of three configurations of antenna arrays. There are linear, planar and circular uniform antenna arrays. From numerical results, the MFOA is effective in determining antenna array parameters. The proposed algorithm has advantages in easy implementation, global search space and fast convergence rate.