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首页> 外文期刊>Journal of Electrical & Electronics Engineering, Australia >Dielectric-loaded Pyramidal Horns
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Dielectric-loaded Pyramidal Horns

机译：介电的金字塔形喇叭

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摘要

This paper describes the step approximation method of analysis of solid dielectric and dielectric-loaded metallised horns. The field components of a hybrid mode [HE_(mn)] were derived and the mode transformation from [HE_(mn)] to TE_(mn)~x was realised and is reported in the paper. By using proper boundary conditions two characteristic equations were derived which yielded phase constants. The far field expressions were derived using Schelkunoff's Equivalence Principle. The computed radiation patterns were compared with the measured ones and they are found to be in good agreement. The transmission coefficients, copolar and crosspolar radiation levels were also measured for solid dielectric, dielectric slabloaded and empty horns to ascertain their relative merits as high performance feeds for satellite dish antennas. It is suggested that the slab-loaded dielectric horn is a viable substitute for corrugated horns.
机译：本文介绍了固体电介质和带电介质的金属化喇叭的分析的近似方法。推导了混合模式[HE_（mn）]的场分量，实现了从[HE_（mn）]到TE_（mn）〜x的模式转换，并进行了报道。通过使用适当的边界条件，得出了两个产生相位常数的特征方程。远场表达式是使用Schelkunoff的等效原理导出的。将计算出的辐射图与测得的辐射图进行比较，发现它们具有很好的一致性。还测量了固体电介质，电介质平板负载和空喇叭的传输系数，同极和交叉极辐射水平，以确定它们作为碟形碟形天线高性能馈源的相对优点。建议用平板加载的介电喇叭代替瓦楞纸喇叭。

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