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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >Single-feed circularly polarized stacked patch antenna with small-frequency ratio for dual-band wireless applications
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Single-feed circularly polarized stacked patch antenna with small-frequency ratio for dual-band wireless applications

机译：具有小频率比的单馈电圆极化堆叠式贴片天线，用于双频无线应用

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摘要

A single-feed dual-band circularly polarized stacked microstrip patch antenna with a small-frequency ratio is presented. Two pair of orthogonal slits is cut on the lower circular patch for achieving circular polarization and truncated corner square patch is used as the upper parasitic element. The frequency ratio of the dual-band is 1.03. The 3 dB axial ratio bandwidth is 1.3% for the upper band and 1.1% for the lower band. Proposed structure is fabricated on the FR-4 epoxy substrate and fed by SMA connector. The measured results are in good agreement with the theoretical and simulated results. The antenna shows stable radiation characteristics in both bands of operation.
机译：提出了一种单频双频圆极化堆叠微带贴片天线。在下部圆形贴片上切出两对正交缝，以实现圆极化，将截顶的角正方形贴片用作上部寄生元件。双频的频率比为1.03。 3 dB轴向比率带宽对于较高频段为1.3％，对于较低频段为1.1％。拟议的结构在FR-4环氧基板上制造，并通过SMA连接器进料。测量结果与理论和模拟结果吻合良好。天线在两个工作频段均显示稳定的辐射特性。

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