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首页> 外文期刊>Electrical Engineers - Part III: Radio and Communication Engineering, Journal of the Institution of >The Field Surrounding an Antenna in a Waveguide
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The Field Surrounding an Antenna in a Waveguide

机译：波导中围绕天线的场

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摘要

In many applications of waveguides an antenna projecting into a waveguide is employed. It is often very desirable to know the maximum electric field strength surrounding such an antenna. The only method for obtaining a very accurate and conventional result in any given particular case is a laborious numerical one. Such information is not of general interest and its only use is to assist in the design of a particular system. It was with the object of obtaining a reasonably general although somewhat approximate result that the method described here was employed. A special type of antenna in a circular waveguide able to carry without attenuation only one wave mode (T.E.1, 1) was considered. By extrapolation, information for a rectangular waveguide with a cylindrical antenna having a hemispherical tip can be obtained. A solution is found only over the mid-plane of the antenna and waveguide, as it is in this plane that the fields are usually noted to be greatest. The results of the investigation are given in a mathematical form for a circular waveguide, and also in the form of sets of curves convenient for practical use in the case of rectangular waveguides.
机译：在波导的许多应用中，采用了伸入波导中的天线。通常非常需要知道这种天线周围的最大电场强度。在任何给定的特定情况下，获得非常准确和常规结果的唯一方法是费力的数字方法。这样的信息并不是普遍感兴趣的，它的唯一用途是帮助特定系统的设计。为了获得一个合理的，虽然有些近似的结果，目的是采用这里描述的方法。考虑了圆形波导中的一种特殊类型的天线，该天线只能承载一个波模（T.E.1，1）而不会衰减。通过外推，可以获得具有带半球形尖端的圆柱形天线的矩形波导的信息。仅在天线和波导的中平面上找到一种解决方案，因为通常会在该平面中注意到电场最大。研究的结果以数学形式提供给圆形波导，也以曲线集的形式给出，在矩形波导的情况下便于实际使用。

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