|
| S波段圆极化单极子宽带天线设计 |
| Design of S-band Circularly Polarized Monopole |
| 投稿时间：2026-01-14 修订日期：2026-04-14 |
| DOI： |
| 中文关键词: S波段 圆极化 枝节干扰 缝隙 |
| 英文关键词: S-band circularly polarization branch interference slots |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
|
| 摘要点击次数: 204 |
| 全文下载次数: 0 |
| 中文摘要: |
| 为了满足无线通信系统大数据传输和通信稳定性的要求，仿真设计了一款基于枝节干扰和圆形缝隙的S波段圆极化单极子宽带天线。天线尺寸为66mm×60mm×0.787mm，通过在辐射贴片上刻蚀圆形缝隙并缩减接地板尺寸，大幅提升了天线的工作带宽；在辐射贴片上引入L枝节同时在接地板上加载矩形结构设计，使天线具备了稳定的圆极化特性。对所设计的天线进行加工测试，仿真及测试结果表明:天线回波损耗小于-10dB的阻抗带宽为2GHz~4GHz，相对带宽达到66.7%，实现了对S波段的全覆盖。在此波段内，天线的绝对轴比带宽约为1.2GHz，且最高增益可达7.35dBi并具备良好的全向辐射特性。该天线兼具剖面低、增益高和抗干扰能力强等优点，在无线通信领域具备良好的应用前景。 |
| 英文摘要: |
| To satisfy the requirements of large data transmission and communication stability in wireless communication systems, this paper simulates and designs an S-band circularly polarized monopole broadband antenna based on branch interference and circular slots. The antenna size is 66mm×60mm×0.787mm. By loading circular slots on the radiating patch and reducing the size of the ground plane, the work bandwidth is expanded significantly. To achieve stable circular polarization characteristics, an L-shaped branch is loaded on the radiating patch and a rectangular structure is added to the ground plane. The antenna was processed and tested. The results show that the impedance bandwidth of the antenna is from 2 GHz to 4 GHz with a return loss less than -10dB, the relative bandwidth reaches 66.7%, fully covering the S band. The absolute axial ratio bandwidth is approximately 1.2GHz. The antenna’s maximum gain can reach 7.35 dBi, demonstrating excellent omnidirectional radiation characteristics. This antenna has the advantages of low Profile, high gain and strong anti-interference ability, and has a good application prospect in the field of wireless communication. |
|
View Fulltext
查看/发表评论 下载PDF阅读器 |
| 关闭 |
