Design of a mine-used directional antenna
-
摘要: 设计了一款适用于巷道类狭长受限空间的双臂平面螺旋天线。该天线由4条等角螺旋线构造的2个对称的螺悬臂组成。与传统的全向天线相比，该天线辐射的定向波束可减少无线电波在巷道壁上的反射损耗，圆极化特性可有效减弱巷道内多径效应的影响，双向辐射特性可提高辐射效率。仿真结果表明，工作在2.4 GHz频段时，5圈双臂平面螺旋天线的3 dB半功率波瓣宽度大于60°，增益大于4 dB；10圈双臂平面螺旋天线的3 dB半功率波瓣宽度为120°，增益大于6 dB。Abstract: A two-arms planar spiral antenna was designed for long-narrow confined space like tunnels. The antenna is composed of two symmetrical arms which are structured by four equiangular helix lines. Compared with traditional omni-directional antenna, the antenna has greater potential for reducing reflection loss of radio waves by tunnel walls. Because of circular polarization characteristics, the antenna has potential for weakening influence of multi-path effect, and bidirectional radiation characteristic can make the antenna to improve radiation efficiency. The simulation results show that when the antenna with five cores works at 2.4 GHz, half power beam width in 3 dB is more than 60 degree and gain is more than 4 dB while the antenna with ten cores is 120 degree and 6 dB seperately.
-
-
期刊类型引用(2)
1. 谢棋军，底青云，杨永友，刘庆波，张辉，马良令. 旋转导向系统中非接触电能与信号一体化传输技术. 地球物理学报. 2023(01): 101-110 . 
百度学术
2. 杨云翠，余力俊，范成刚，刘健成，潘林粉. 含电池储能的直流配电网拓扑优化控制方法. 自动化应用. 2023(24): 195-197 . 百度学术
其他类型引用(1)
计量
- 文章访问数: 56
- HTML全文浏览量: 5
- PDF下载量: 14
- 被引次数: 3
下载:
