| 摘要: |
| 设计了一款基于全介质极化器的X频段圆极化喇叭天线。该全介质极化器加载在线极化喇叭天线的前端，将线极化波转换为圆极化波，并有效辐射出去。同时，该全介质极化器还将天线的实测增益提高了约2 dB。天线的测试结果与仿真结果吻合较好。该天线在X频段（8~12 GHz）的实测S11均小于-10 dB，实测轴比在X频段内均小于3 dB，表明该圆极化喇叭天线具有宽带高增益特性。并且，该全介质极化器使用3D打印技术制作，具有加工简便、成本低的优点。该天线可应用于雷达、跟踪制导、卫星通信系统等领域。 |
| 关键词: X频段喇叭天线 介质加载 宽带圆极化 3D打印 |
| DOI：10.20079/j.issn.1001-893x.211111001 |
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| 基金项目:广西自然科学基金项目（2021JJA170177） |
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| Design of an X-band dielectric loaded circular polarization horn antenna |
| LUO Yongyuan,PENG Lin,LIAO Xin |
| (Key Laboratory of Microwave and Optical Wave Application Technology,Guilin University of Electronic Technology,Guilin 541004,China) |
| Abstract: |
| An X-band circular polarized horn antenna based on all-dielectric polarizer is designed.The all-dielectric polarizer is loaded at the front end of the linear polarization horn antenna,which will convert linearly polarized waves into circular polarized waves to effectively radiate the power.Meanwhile,the measured gain stability of the antenna is improved by about 2 dB by the all-dielectric polarizer.The antenna measurement results are in good agreement with the simulation ones.The measured S11 of the antenna in the X-band(8~12 GHz) is less than -10 dB,and the measured axial ratio is less than 3 dB in the X-band.The results show that the circular polarization horn antenna has the characteristics of broad band and high gain.In addition,the all-dielectric polarizer is made by 3D printing technology,which has the advantages of simple processing and low cost.The antenna can be applied in such field as radar,tracking guidance,satellite communication system. |
| Key words: X-band horn antenna dielectric loaded broad band circular polarization 3D printing |
