摘要
为实现紧凑型的高功率螺旋阵列天线,提出并设计了一种L波段132单元侧馈式扁波导螺旋阵列天线。首先对阵列的工作原理进行了阐述,通过合理运用多种不同结构的探针,对原有探针结构进行了改进和优化,解决了侧馈式馈电系统内微波能量分布不均匀的问题,实现了均匀馈电。并将馈电系统与螺旋天线单元连接,得到了完整的阵列天线模型。最后对其进行了数值模拟,结果表明:该阵列天线在1.56~1.62 GHz的频带范围内,反射系数基本小于0.2,中心频点1.575 GHz处的增益为24.7dB,轴比为0.88 d B,功率容量为5.18 GW。
In order to realize the compact high power helical array antenna,an L-band 132 units side-feed flat waveguide helical array antenna was proposed and designed,and the principle of the antenna array was introduced. Using different kinds of probes and improving the original probes,the problem that microwave distribution was not uniform was solved,and realized the continuous feed. Combining the feeding system with the helical antenna unit,the complete array antenna model was obtained. The simulation results showthat in the range of 1. 56-1. 62 GHz,the array shows a reflection coefficient of below0. 2. At the centre frequency of1. 575 GHz,the gain is 24. 7 dB,axis ratio is 0. 88,and the power capacity is 5. 18 GW.
作者
赵玮琛
张政权
张健穹
刘庆想
李相强
梁源
ZHAO Weichen;ZHANG Zhengquan;ZHANG Jianqiong;LIU Qingxiang;LI Xiangqiang;LIANG Yuan(School of Physical Science and Technology,Southwest Jiaotong University,Chengdu 610031,China)
出处
《电子元件与材料》
CAS
CSCD
北大核心
2018年第6期78-82,共5页
Electronic Components And Materials
基金
中央高校基本科研业务费专项资金项目(26822014ZT20
26822014CX089)
关键词
螺旋天线
阵列天线
耦合探针
扁波导
高功率微波
馈电系统
helical antenna
array antenna
coupling probe
slab waveguide
high power microwave
feed system
