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。

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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。

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Thermal imaging systems based on uncooled focal plane array detectors require their optical lens with a large relative aperture.

基于非致冷焦平面阵列探测器的热成像系统，要求光学系统具有足够大的相对孔径。

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Global Hawk can pick out objects as small as a truck with its synthetic aperture radar, which uses the plane's flight path to simulate the curve of a radar dish several hundred meters long.

FORBES: We See You