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首页> 外文期刊>Electrical Engineers - Part III: Radio and Communication Engineering, Journal of the Institution of >Some Principles underlying the Design of Aerial Systems for High-Frequency Radio Direction-Finders in H.M. Ships
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Some Principles underlying the Design of Aerial Systems for High-Frequency Radio Direction-Finders in H.M. Ships

机译：H.M.的高频无线电测向仪航空系统设计的一些原则轮船

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摘要

The paper deals with the design of direction-finding aerial systems to cover the whole of the h.f. band, to work on the ground wave and to meet the conditions peculiar to H.M. ships. The special problems encountered are intimately connected with the siting of the d.f. aerial. The aerial must be fitted to the top of a mast, and often at a considerable distance from the receiving compartment. The most satisfactory design of d.f. aerial to meet these conditions consists of two fixed crossed loops with an incorporated sense aerial, and a network for injecting test signals into the d.f. and sense-aerial circuits. The aerial system must be connected to the receiving apparatus by means of transmission lines which may be of considerable length. The paper describes the special problems experienced in achieving satisfactory performance in sensitivity, bearing accuracy and resolution of sense ambiguity, the compromises in design that have to be adopted and the performance figures obtained.
机译：这篇论文涉及的方向性航拍系统的设计涵盖了整个h.f.波段，以处理地波并满足H.M.特有的条件船。遇到的特殊问题与d.f的位置紧密相关。天线。天线必须安装在桅杆的顶部，并且通常要与接收舱保持一定距离。 d.f.最令人满意的设计满足这些条件的天线由两个固定的交叉环路组成，该环路带有一个集成的感应天线，以及一个将测试信号注入d.f的网络。和感性空中电路。天线系统必须通过传输线连接到接收设备，传输线的长度可能会很大。本文介绍了在灵敏度，轴承精度和感官歧义度方面获得令人满意的性能时遇到的特殊问题，必须采用的设计折衷方法以及获得的性能指标。

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