电磁带隙结构在天线雷达散射截面减缩中的应用
Application of electromagnetic bandgap structure in RCS reduction of antenna
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摘要: 提出了一种使用电磁带隙结构来减小微带印刷对称阵子天线雷达散射截面的方法。该方法利用电磁带隙结构的带阻特性，使其能作为天线的地板，在带外(非谐振)时，电磁带隙结构对入射电磁波起滤波作用。仿真和实验的结果表明,电磁带隙结构能保证天线在带内辐射不受影响的同时，还大幅度地降低了天线带外的雷达散射截面。
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关键词:
- 微带印刷对称阵子天线 /
- 电磁带隙结构 /
- 雷达散射截面
Abstract: A method of radar cross section(RCS) reduction of microstrip printed dipole antenna with a uniplanar compact-EBG(UC-EBG) ground plane is proposed. Owing to its stop-band property, the proposed UC-EBG can be used as the ground plane of a microstrip printed dipole antenna. During the pass-band, the proposed UC-EBG make much more plane electromagnetic wave pass through. The simulated and measured results show that the proposed UC-EBG ground can effectively reduce the RCS of microstrip printed dipole antenna outside operating band, while its radiation is hardly affected by the proposed UC-EBG ground in the operating band.-
Key words:
- microstrip printed dipole antenna /
- ebg-structure /
- radar cross section
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