1) focusing antenna
聚焦天线
2) focal lens antenna
聚焦透镜天线
1.
An analytical method was presented to calculate the focal spot size of the focal lens antenna.
根据惠更斯-菲涅耳原理,通过简单的推导,得出聚焦透镜天线焦平面上焦斑宽度的近似计算公式,并讨论了与焦平面平行的平面上的焦斑场。
3) spot-focusing lens antenna
点聚焦透镜天线
1.
In this paper, a spot-focusing lens antenna operating at 8 mm frequency band is designed according to the measurement of the density of the plasma.
根据等离子体密度的测量要求,设计了一种工作于8mm频段的点聚焦透镜天线。
2.
Aiming at the deficiency of validity of catching targets in single beam spot-focusing lens antenna, applying to ballistic wake microwave interferometer, a multi-beam spot-focusing lens antenna is mainly considered to design in this paper to augment the range of catching and enhance probability of hitting the target.
本文采用将高斯波束法,射线追迹和矢量衍射积分相结合的方法来分析单波束的点聚焦透镜天线。
4) multiple beam focusing horn lens antenna
多波束聚焦透镜天线
1.
So we consider to designing multiple beam focusing horn lens antenna in order to augment the range of catching and enhance the probability of hitting the target.
本文的主要工作是针对弹道靶尾迹微波干涉仪里的点聚焦单波束捕捉目标的有效性能不足,而考虑设计一个具有点聚焦特点的多波束聚焦透镜天线,以增大捕捉范围和提高中靶率。
5) cooperative multi-antenna broadband focus
协同多天线波束聚焦
6) ring-focus antenna
环焦天线
1.
Design method of the ring-focus antenna with a variable focal distance for forming an elliptic beam;
椭圆波束变焦距环焦天线的设计方法
2.
The elliptical beam ring-focus antenna with a variable focal distance has high efficiency and good polarization performance.
椭圆波束天线在卫星通信中具有许多应用场合,但以往各种椭圆波束天线的性能存在某些缺陷,而椭圆波束变焦距环焦天线具有很高的天线效率和良好极化性能。
补充资料：冲击波聚焦效应