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首页> 外文期刊>Journal of Electromagnetic Waves and Applications >Multilayered circularly polarized microstrip antenna integrated with defected ground structure for wide impedance and axial ratio bandwidth
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Multilayered circularly polarized microstrip antenna integrated with defected ground structure for wide impedance and axial ratio bandwidth

机译：集成有缺陷接地结构的多层圆极化微带天线，具有宽阻抗和轴向比率带宽

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摘要

In planar antennas, the bandwidth enhancement can be obtained by multi-layered structure and using the parasitic patch along with proximity coupling. In this paper, further enhancement of the bandwidth demonstrated by integrating specific shape of the defected ground structure (DGS) in the ground layer of multi-layered circular polarized planar antenna. Enhancement of 64% in return loss bandwidth and 25% in axial ratio bandwidth obtained after integrating ring shape DGS. Two Laboratory prototype of antennas, one with and another without DGS are fabricated and tested. Details of the proposed antenna designs and role of DGS in performance enhancement of planar antenna are described, and typical experimental results are presented and discussed.
机译：在平面天线中，可通过多层结构并使用寄生贴片和邻近耦合来获得带宽增强。在本文中，通过将有缺陷的地面结构（DGS）的特定形状集成到多层圆极化平面天线的接地层中，进一步提高了带宽。集成环形DGS后获得的回波损耗带宽提高了64％，轴向比率带宽提高了25％。制作并测试了两个实验室天线原型，一个带有DGS，另一个没有DGS。描述了拟议的天线设计的细节以及DGS在平面天线性能增强中的作用，并给出和讨论了典型的实验结果。

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