In this paper, an e-plane sectoral horn with amplitude taper and phase correction in the aperture is presented.
本文介绍一种在喇叭口径上具有幅度锥削的相位校正的E面扇形喇叭。
2
The basic factors affecting collimating characteristic are off-axis magnitude, effective aperture and emission position on the focal plane of off-axis parabolic mirror.
影响离轴抛物镜准直特性的主要因素有离轴量，有效孔径和焦面出射点的位置。
3
Thermal imaging systems based on uncooled focal plane array detectors require their optical lens with a large relative aperture.