This is the paraboloidal mirror at the bottom of the tube.

是位于镜筒底部的一块抛物面镜。

The primary mirror. This is the paraboloidal mirror at the bottom of the tube.

是位于 镜筒底部的一块抛物面 镜。

A corrugated conical horn antenna with high-gain and low-sidelobe feeding the paraboloidal reflector antenna to reduce the cost is designed.

文中设计了一种加扼流环的圆锥喇叭来作为抛物面的馈源，实现低成本的高增益、低旁瓣的收发天线系统。

The invention relates to a concentrator of a coaxial confocal rotating paraboloidal mirror, belonging to the technical field of parallel light convergence.

本发明是一种同轴共焦旋转抛物面镜聚光器，属于平行光汇聚的技术领域。

Therefore, it has been one of the difficult problems which are urgent to solve that the study of electromagnetic coupling between high-frequency antennas such as paraboloidal antennas.

因此，研究抛物面天线等高频天线之间的电磁耦合成为迫切需要解决的难题之一。