4.7 Article

Design and Implementation of Ku-Band High Directionality Antenna

期刊

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 70, 期 12, 页码 11514-11525

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2022.3209688

关键词

Broadband impedance matching; finite-element analysis; high directivity; Ku-band; structural mathematical model

资金

  1. National Natural Science Foundation of China [11527801]
  2. Beijing Municipal Commission of Education [KM201310005006]

向作者/读者索取更多资源

In this article, a Ku-band high directivity antenna is designed and its radiation performance is improved by optimizing the structural parameters. The calculation method between key technical indexes and structural parameters is established, and finite-element analysis and COMSOL simulation software are used for study.
In this article, a Ku-band high directivity antenna is designed, which consists of a radiation waveguide section, a mode conversion section, and a coaxial waveguide conversion section. In this article, the theoretical calculation process of antenna components is summarized and supplemented. The calculation method between key technical indexes and structural parameters is established. The key technical parameters of the antenna, including input return loss, half-power beamwidth, gain, and cross-polarization level, are studied and explored. The radiation performance of the antenna can be further improved by optimizing the structural parameters. Finite-element analysis and COMSOL simulation software are used to study. In order to reduce antenna reflection, a method of equal-Q impedance transformation is proposed for rectangular and circular waveguide converters and coaxial waveguide converters. Finally, the proposed feed antenna is processed and verified, and the measured results are in good agreement with the simulation results.

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