High Power Laser and Particle Beams, Volume. 37, Issue 4, 043007(2025)

Design of a miniaturized high-isolation dual-frequency antenna based on quarter-mode substrate integrated waveguide

Xiaolong Li, Jiaxin Liu, and Qinggong Guo
Author Affiliations
  • College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
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    Figures & Tables(12)
    E-field distribution at TE110
    Schematic diagram of the antenna
    Design process of the antenna
    E-field distribution
    Effect of a single variable on S-parameters and isolation
    Image of antenna processing sample
    Image of antenna test scenario
    Simulated and measured S-parameters
    Radiation pattern at 5.2 GHz
    Radiation pattern at 5.8 GHz
    • Table 1. Parameters of the antenna (mm)

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      Table 1. Parameters of the antenna (mm)

      LL1L2L3L4L5L6W
      2410.618.522.5100.90.724
      W1W2W3W4G1G2K1K2
      21.30.540.50.52.62
      dph
      11.50.787
    • Table 2. Comparison with other dual band antennas

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      Table 2. Comparison with other dual band antennas

      antennasfrequency/GHzisolation/dBgain/dBifront-to-back ratio FTBR/dBsize
      Ref [5]5.2/5.8>286.97/6.20.83λ×0.90λ0×0.03λ0
      Ref [6]8.7/10.5>205.11/7>11.20.81λ0×0.81λ0×0.05λ0
      Ref [10]11.23/11.72>145.6/5.9>140.54λ0×0.48λ0×0.03λ0
      Ref [13]3.56/4.4>245.3/4.450.43λ0×0.43λ0×0.02λ0
      this work5.2/5.8>346.0/6.1>15.60.42λ0×0.42λ0×0.01λ0
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    Xiaolong Li, Jiaxin Liu, Qinggong Guo. Design of a miniaturized high-isolation dual-frequency antenna based on quarter-mode substrate integrated waveguide[J]. High Power Laser and Particle Beams, 2025, 37(4): 043007

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    Paper Information

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    Received: Sep. 5, 2024

    Accepted: Dec. 31, 2024

    Published Online: May. 15, 2025

    The Author Email:

    DOI:10.11884/HPLPB202537.240309

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