利用超材料吸波体减缩缝隙天线雷达散射截面

doi:10.3969/j.issn.1001-2400.2013.05.021

Abstract

Abstract:

An ultra-thin metamaterial absorber with polarization stability, a wide incident angle and no surface ullage layer is proposed and applied to the waveguide slot antenna to reduce its in-band Radar Cross Section(RCS). Theoretical analysis, and simulation and experimental results demonstrate that the absorber can exhibit an absorption of 99％ with thickness of only 0.0057λ, that when applied to the waveguide slot antenna in an optimized distribution, it can reduce the in-band RCS of the antenna for more than 3dB from -21° to +21°, that the largest reduction value exceeds 13dB in the normal direction, and that it can increase the gain by 0.99dB.

Key words: ultra-thin metamaterial absorber, waveguide slot antenna, radar cross section

YANG Huanhuan;CAO Xiangyu;GAO Jun;YAO Xu;LIU Tao;YANG Qun. Application of metamaterial absorber for RCS reduction of slot antenna[J].J4, 2013, 40(5): 130-134.

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Application of metamaterial absorber for RCS reduction of slot antenna

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