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Spherical Aperture-Coupled Antennas with Parasitic Element

机译:带有寄生元件的球形孔耦合天线

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摘要

Theory and experiment of spherical aperture-coupled antennas with parasitic elements are presented in this paper. Current distributions on slot and conformal patches are calculated using spatial domain electric and magnetic Dyadic Green's Functions (DGFs). Electromagnetic fields for such a structure have been calculated with the aid of linear Rao-Wilton-Glisson (RWG) triangular basis functions and by converting spherical DGFs to Cartesian DGFs. In order to validate the proposed method, a prototype of this antenna is fabricated and tested. The effect of parasitic element on antenna characteristics such as gain and radiation pattern is investigated. Good agreement between the results shows accuracy and high convergence speed of the presented method.
机译:提出了带有寄生元件的球形孔径耦合天线的理论和实验。缝隙和共形斑块上的电流分布是使用空间域电和磁Dyadic Green函数(DGF)计算的。已经借助线性Rao-Wilton-Glisson(RWG)三角基函数并通过将球形DGF转换为笛卡尔DGF来计算出这种结构的电磁场。为了验证所提出的方法,制造并测试了该天线的原型。研究了寄生元件对天线特性(如增益和辐射方向图)的影响。结果之间的良好一致性表明了该方法的准确性和较高的收敛速度。

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