Variations on loop and Adcock array topologies for improved radio direction finding performance

C. Vale
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引用次数: 1

Abstract

We present what we believe to be two novel and related antenna topologies that find application in radio direction finding (DF). A topology for a stabilised anti-phase dual-fed loop antenna is presented that reduces sensitivity to cross-polarised wave incidence, increases loop gain at higher frequencies and provides improved pattern stability when compared to traditional loop antenna designs. Additionally, we present a hybrid Adcock/loop topology that provides the desirable qualities of Adcock arrays at high frequencies whilst substantially improving the low frequency sensitivity of electrically small Adcock arrays. Design and measurements are presented for both variations.
改进无线电测向性能的环路和Adcock阵列拓扑的变化
我们提出了我们认为在无线电测向(DF)中应用的两种新颖且相关的天线拓扑结构。提出了一种稳定反相位双馈环形天线的拓扑结构,与传统的环形天线设计相比,它降低了对交叉极化波入射的灵敏度,增加了更高频率下的环路增益,并提供了更好的方向图稳定性。此外,我们提出了一种混合Adcock/环路拓扑结构,该拓扑结构在高频下提供了Adcock阵列的理想质量,同时大大提高了电小型Adcock阵列的低频灵敏度。设计和测量提出了这两种变化。
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