1) antenna polarization mode
天线极化方式
4) Circularly polarized antenna
圆极化天线
1.
There are inherent contradictions among bandwidth, gain and miniaturization, on the basis of study on key technologies such as miniaturization and wide-band, the structure of circularly polarized antenna is innovated by digging a hole on medium board which solves contradictions among them.
从圆极化波产生理论出发,建立了三种分别采用双馈点馈电、微带馈电和探针馈电的圆极化天线的理论模型,对性能参数进行了优化,并对天线的关键尺寸进行分析,用仿真图形及表格清晰地描述了寄生单元的长宽、切角、辐射面大小等关键尺寸对于增益、轴比、阻抗等性能的影响规律,并由得出的规律对三种馈电方式的优缺点进行分析总结,得出结论:双馈点馈电的带宽良好但设计复杂,微带馈电的匹配网络简单但不易实现小型化,探针馈电使性能过于敏感。
5) variable polarization antenna
变极化天线
6) Dual-polarized antenna
双极化天线
1.
A scheme called dual-polarized antenna was realized with the advantage of antenna miniaturization.
论文在分析传统智能天线的基础上,实现了一种智能天线小型化的技术——双极化天线,较好地解决了智能天线在工程应用中的瓶颈问题。
补充资料：油气田开发方式(见油气田生产方式)
油气田开发方式(见油气田生产方式)
development pattern of oil and gas field:see recovery pattern of oil and gas field
a垃d gas月e卫d) 、‘。尸卫Jlent见油气田小冰、*pa士teroof ojl
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条