An SICL-based dual-feed circularly polarized cavity-backed patch antenna
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College of Electronic Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing Jiangsu 211106,China

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    Abstract:

    A dual-feed circularly polarized patch antenna based on Substrate Integrated Coaxial Line(SICL) feed is proposed. Dual-feed point method is utilized to realize circular polarization. With the backed cavity, the antenna performance, for example, the bandwidth, the back lobe, the mutual coupling and the structure miniaturization, has been improved. Simulation results show that the antenna can achieve S11<-10 dB(relative bandwidth is 28.8%@51 GHz) at 42.42~56.69 GHz, and the axial ratio is less than 3 dB and the maximum gain is 8.9 dBi at 45.26~48.08 GHz.

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周玥,刘冰,王唯伟,孙兴凯.基于基片集成同轴线的双馈点圆极化天线[J]. Journal of Terahertz Science and Electronic Information Technology ,2023,(3):349~352

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History
  • Received:December 18,2020
  • Revised:January 14,2021
  • Adopted:
  • Online: March 31,2023
  • Published: