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On the performance characteristics of a thin-wire zigzag circular-loop antenna

This paper presents an investigation of the performance features of a thin-wire zigzag antenna, shaped in the form of a circular loop, and whose characterizing current distribution is determined with the use of a Method of Moments (MoM) approximation involving a delta-gap feed model. Data concerning the antenna's input characteristics are available from the MoM tool, whilst its radiation-zone parameters, as described in the paper, subsequently derive from the Matrix Vector Potential (MVP) integrals earlier reported by Muhammed et al. The computational results displayed in graphical formats suggest that there are significant differences between the performance parameters of the zigzag circular loop and those of the regular circular-loop, depending on the geometry of the zigzag elements introduced. Indeed, because the MVP is able to identify distinct contributions attributable to the zigzag elements, it becomes possible to prescribe the design possibilities offered by variations in the geometrical properties of the zigzag elements, including degree of uniformity, pitch profile, and number of elements.