平面和圆柱表面上共面波导馈电超宽带天线

R. Lech, W. Marynowski, A. Kusiek
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引用次数: 2

摘要

研究了共面波导馈电超宽带天线,研究了不同材料的接近度对天线反射系数和辐射特性的影响。该天线由两根圆形共面带组成,两根共面带封闭形状相似的槽孔,设计在薄而柔性的基板上。仿真和实验结果表明,该天线在2 ~ 15ghz频率范围内性能良好,回波损耗小于10dB。结果表明,不同非金属材料的接近对天线性能没有显著影响。金属屏的临近使其辐射方向图和反射系数变差。然而,只要正确选择屏幕和天线之间的距离,就可以提供所需的回波损耗水平。
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Coplanar waveguide fed ultra-wideband antenna over the planar and cylindrical surfaces
The investigation of coplanar waveguide fed ultra-wideband antenna and the influence of the proximity of different materials on the reflection coefficients and radiation characteristics is presented. The antenna is composed of two circular coplanar strips which enclose slot aperture of similar shape and is designed on a thin and flexible substrate. From the modeling and experimental tests the antenna shows good performance in 2-15GHz frequency range with return losses better than 10dB. It is shown that the proximity of different, non-metalic materials does not significantly affect antenna performance. The proximity of metalic screens deteriorates its radiation pattern and reflection coefficient. However with the correct choice of the distance between screen and antenna the required level of return losses can be provided.
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