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Low-sidelobe marine radar microstrip array antenna based on hybrid algorithm and metamaterial

机译:基于混合算法和超材料的低旁轴海洋雷达微带阵列天线

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摘要

A microstrip array antenna with low sidelobe level (SLL) for X-band marineradar is proposed. The antenna is composed of a 32-element patch array and athree-layer near-zero-index metamaterial (NZIM). The IABC-Kmeans algorithm,which combines the improved artificial bee colony algorithm andK-means clustering algorithm, is used to optimize the current amplitude of thearray elements to obtain a lower SLL. The NZIM is loaded in front of the arrayantenna to reduce the beamwidth of the E-plane. The antenna is designed andfabricated. The measurement results show that the gain of the antenna at thecenter frequency is 22.7 dBi, the SLLs of H-plane and E-plane are -30.66 dBand -26.78 dB respectively, and the half-power beamwidth of H-plane is 5.9.Compared with the previous similar antenna structures, the antenna has lowerSLL under the premise of narrow beam and high gain, which is very suitablefor X-band marine radar of small and medium fishing vessels.
机译:用于X波段船舶的低侧链电平(SLL)的微带阵列天线 提出了雷达。 天线由32元件贴片阵列和a组成 三层近零指数超材料(NZIM)。 IABC-KMEANS算法, 结合了改进的人造群菌落算法和 K-means聚类算法用于优化当前幅度 数组元素以获得较低的SLL。 南部装入阵列前面 天线减小E平面的波束。 天线设计和 捏造。 测量结果表明天线的增益 中心频率为22.7 dbi,H平面和电子平面的SLL为-30.66 dB 分别为-26.78 dB,H-Plane的半功率波束宽度为5.9。 与以前类似的天线结构相比,天线具有较低的 在狭窄的光束和高增益的前提下,SLL非常合适 对于中小型渔船的X波段海洋雷达。

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