标准波束引导进场系统 [航] standard beam approach system
单模光纤作为标准波导的端面耦合自动调芯试验显示，平均耦合损耗分别为0。
Experiment results using single mode fiber as standard waveguide show that the average end-coupling loss is 0.
本文利用四端口网络特性，采用一种新型结构，实现了标准波导魔t的功能。不仅在外形结构尺寸上大大减小，而且使调试简化。
The characteristics of four port network has been employed in realizing a novel structure of broadband magic t junction which can substitute traditional magic t with reduced size and easy tuning.
主要介绍同轴、波导s参数标准件的组成、设计方法、研制过程及参数定标的方法。
The article mainly introduces the composition, design method, research process, parameter verification of coaxial, waveguide S-parameter standard devices.
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