Side Lobe Suppression of Marine-Radar Linear Array Antenna by a Reflectionless Metasurface
Side Lobe Suppression of Marine-Radar Linear Array Antenna by a Reflectionless Metasurface
复制标题
无反射超表面抑制海洋雷达线性阵列天线的旁瓣
DOI:
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发表时间:
2019
期刊:
影响因子:
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通讯作者:
A. Sanada
中科院分区:
文献类型:
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作者:
Y. Kato;Y. She;S. Kurokawa;A. Sanada
This paper demonstrates a side lobe suppression technique of a marine radar linear slot array antenna by a reflectionless metasurface. The metasurface introduces position-dependent phase shifts so that the phase across the entire aperture can be uniform. It is numerically shown that the metasurface drastically suppresses the maximum side lobe level at 9.41 GHz to be below -24 dB in both the E and H planes, and as a consequence, the peak gain of the main lobe is increased by 1.4 dB.