| 一种基于紧耦合结构的超宽带天线阵列设计 |
| |
| 引用本文： | 陈常青,周志鹏,张金平.一种基于紧耦合结构的超宽带天线阵列设计[J].现代雷达,2018,40(2):73-76. |
| |
| 作者姓名： | 陈常青 周志鹏 张金平 |
| |
| 作者单位： | 南京电子技术研究所,南京电子技术研究所,南京电子技术研究所 |
| |
| 摘 要： | 设计了一种超宽带紧耦合天线阵列,该超宽带天线由两层印刷有偶极子单元的周期结构构成,上层互不相连的偶极子单元为寄生层,下层在E 面增加了强耦合结构的偶极子单元为辐射单元层。馈电网络由Marchaned 巴伦和宽带Wilkinson 功分器组成。仿真结果表明:天线法向辐射时在0.9 GHz ~4.8 GHz 内具有良好的阻抗匹配带宽(VSWR<2),在1 GHz ~4 GHz频段内可以实现E 面60度、H 面45度的扫描范围。该天线具有超带宽、大扫描角、轻薄化等特点,在超宽带小型化相控阵天线中有良好应用前景。
|
| 关 键 词： | 超宽带 紧耦合阵列天线 寄生层 Marchaned 巴伦 轻薄化 |
Design of an Ultra-wideband Antenna Array Based on the Structure of Tightly Coupled |
| |
| CHEN Changqing,ZHOU Zhipeng and ZHANG Jinping.Design of an Ultra-wideband Antenna Array Based on the Structure of Tightly Coupled[J].Modern Radar,2018,40(2):73-76. |
| |
| Authors: | CHEN Changqing ZHOU Zhipeng and ZHANG Jinping |
| |
| Affiliation: | Nanjing Research Institute of Electronics Technology,Nanjing Research Institute of Electronics Technology and Nanjing Research Institute of Electronics Technology |
| |
| Abstract: | A ultra-wideband tightly coupled array is proposed. The antenna consists of two layers of printed dipole unit. The disconnected dipole located in the top is parasitic layer . The unit that is increased the coupling structure at E-plane is radiation lay.Feed network is composed of Marchaned balun and broadband Wilkinson power dividers. The simulation results show that the antenna achieves 0 . 9 GHz ~ 4 . 8 GHz bandwidth for VSWR < 2 , andhave E-plane 60 o, H -plane 45 oscanning range in 1 GHz ~ 4 GHz. This antenna has characteristic of broad bandwidth, large scan angle, and lightweight , which can be applied to small ultra-wideband phased antenna array system. |
| |
| Keywords: | ultra-wideband tightly coupled array parasitic layer Marchaned balun lightweight |
|
| 点击此处可从《现代雷达》浏览原始摘要信息 |
|
点击此处可从《现代雷达》下载全文 |
