S. Tripathi, S. Yadav, V. Vijay, A. Dixit, A. Mohan
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引用次数: 5
摘要
我们将讨论具有陷波特性的超宽带(UWB)单极天线的小型新颖六角形几何结构。这种分形几何的自相似特性提供了更高的有效天线长度和更宽的工作带宽,因为多重谐振的开始。陷波特性通过在地平面上的矩形槽引入,提高了该器件在整个UWB频率工作范围内的反射系数。该天线的优化尺寸为19 mm × 15 mm,是此类几何形状中最小的,具有3.1 GHz至11.7 GHz的大带宽,VSWR <;2在整个频率范围内。该天线在整个UWB频率范围内具有接近全向的辐射方向图、良好的阻抗匹配和良好的回波损耗。
We will discuss a small novel hexagonal shaped geometry for ultra wideband (UWB) monopole antenna with notch characteristics. The self-similar nature of this fractal like geometry provides higher effective antenna length and wide operating bandwidth because of the onset of multiple resonances. Notch characteristics are introduced using a rectangular slot in the ground plane, which enhances the reflection coefficient over the entire UWB frequency operating range for the proposed device. The optimized 19 mm × 15 mm dimensions, for the proposed antenna are the smallest among such geometries, exhibiting a large bandwidth from 3.1 GHz to 11.7 GHz with VSWR <; 2 over the entire frequency range. The proposed antenna demonstrates nearly omnidirectional radiation pattern, proper impedance matching, and good return loss over the entire UWB frequency range.