| 摘要: |
| 提出了一种新型的多层介质结构的反射面天线，反射平面上所需要的相位补偿通过选择合适的介质厚度来实现，使用几个多层圆形介质即可满足条件。与传统的高增益天线相比，该结构设计简单，加工方便。验证了几种不同层数的结构和一个等口径的抛物面反射面天线。加工并测试了一个采用Vivaldi做馈源的4层结构的反射面天线。仿真和测试结果均表明该天线具有良好性能。 |
| 关键词: 高增益天线 反射面天线 相位补偿 多层介质 |
| DOI： |
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| 基金项目: |
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| A novel reflector antenna using dielectric substrates |
| CHEN Yang |
| (Southwest China Institute of Electronic Technology,Chengdu 610036,China) |
| Abstract: |
| A novel reflector antenna concept using multi-layer configuration is presented.The required phase compensation on the reflecting surface is controlled by choosing suitable thickness of the dielectric substrate,which can be realized by several concentric circular dielectric substrates stacked on the ground plane.Compared with conventional high-gain antenna technologies,this configuration features less manufacturing complexity.Performance comparisons between different multi-layer structures along with parabolic reflector with the same aperture size are investigated.A prototype of four-layer reflector with a Vivaldi feed is fabricated and measured.All simulation and measurement results demonstrate that the proposed reflector antenna has a good performance. |
| Key words: high-gain antenna reflector antenna phase compensation multi-layer dielectric substrate |
