aperture efficiency的例句大全

numerical results show that the effect of metallization thickness is smaller on the direction of main beam and very noticeable on the beamwidth and aperture efficiency.

数值结果表明，金属栅厚度对漏波天线波求方向影响较小，但对漏波天线的辐射效率和波束宽度有明显的影响。

waveguide slot antenna with a compact, thick, light weight, high aperture efficiency, easy to achieve low sidelobe characteristics, is widely used in radar and communications.

波导缝隙天线具有结构紧凑、厚度小、重量轻、天线口径效率高、容易实现低副瓣等特点，被广泛应用于雷达和通讯领域。

calculation results show that a sidelobe level and aperture efficiency closed to the theoretic ones can be achieved provided the designed aperture distribution is around the theoretic low sidelobe aperture distribution.

计算结果表明，只要口径场分布的设计值在低旁瓣口径场分布的理论值上上下波动，就能获得与低旁瓣口径场分布的理论值较接近的旁瓣电平和口径利用效率。

the measured results are as follows: the antenna gain is 21.5 db with an aperture efficiency of about 46%, the reflection coefficient is about 0.07~ 0.39 in the range of 6.5~ 7.5 ghz.

实验测量结果为：增益21.5dB，口径效率约46%，在6.5~7.5GHz频率范围内反射系数约为0.07~0.39。

The coaxial horn is studied with finite-element methods ( FEM). The results indicate that this type of horn is characterized by high aperture efficiency, short axial length, wide bandwidth, and low sidelobes.

对同轴喇叭进行了系统的研究，结果表明，该喇叭具有纵向尺寸短、口径效率高、频带宽和副瓣小等优点。

factor which affected the aperture efficiency is analyzed, and then the aperture efficiency using three approaches is optimized;

分析了影响阵列天线口径效率的因素，通过三种途径优化了口径效率；

it has the characteristics of the small volume, light weight, high aperture efficiency and low wide-angle minor lobe and so on.

它具有体积小、重量轻、口径效率高、宽角副瓣低等特点。

with a simulation of the radiation from he 0 11 field distribution in aperture of high efficiency feed horns by gaussian-beam field from a point source with complex coordinates, the scattering of ring-caustic subreflector near the feed is analyzed by complex ray tracing.

以复源点所产生的高斯波束场来模拟高效率馈源HE011口径的辐射，馈源辐射近区内环焦副反射面的散射场可由复射线追踪法求得。

Shaping of a laser diode beam through a aperture stop: analysis of the coupled efficiency and the wave aberration

激光二极管光束经光阑整形：耦合效率与波差分析

The dynamic range of volume hologram imaging depends on the hologram diffraction efficiency and the material. The depth resolution depends on the numerical aperture of the objective lens and the thickness of the hologram.

体全息共焦成像的动态范围取决于全息衍射效率和材料的限制，而深度分辨率则取决于物镜的数值孔径和记录介质的厚度大小。

The light intensity distribution of ball lenses diffraction facula is increasing and light intensity is decreasing during increasing the beam aperture and the maximum coupling efficiency is 62.5%.

伴随着通光孔径的增加，球透镜的衍射焦斑强度分布增大，衍射的强度减小；直径为0.8mm的球透镜最大耦合效率为62.5%。

Efficiency of Polarizing Beam Splitting Scheme for Rayleigh Laser Guide Star Transmitted and Received in Common Aperture

激光导星共孔径发射接收的偏振分光效率研究