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L波段宽带缝隙耦合天线设计

Journal of Microwaves(2012)

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Abstract
本文采用变异hour glass形状缝隙耦合馈电,并引入背腔结构,设计了一种适用于L波段,具有良好波束前后比特性的宽带缝隙耦合微带天线,并讨论了馈电网络参数和背腔结构对天线性能的影响。设计结果表明:该天线驻波相对带宽≥50%,频带内辐射前后比均≥12dB。
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Key words
wideband antenna,aperture-coupled,cavity structure
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