带有EBG反射板的缝隙多层宽带微带阵列天线

发布时间：2018-07-12 19:13

本文选题：微带阵列天线 + 宽带微带天线　；参考：《微波学报》2014年01期

【摘要】：宽带微带天线多使用缝隙结构和多层结构,在扩展阻抗带宽的同时天线方向图副瓣与后瓣电平变大,降低了天线性能,限制了应用。小型化金属EBG结构反射板具有高阻抗表面特性,可利用其减小天线厚度提升方向图性能。通过结构设计与优化,相对于普通反射板结构,天线前后比提升了1.29dB,最大副瓣电平降低了3.16dB。天线至反射板的距离也被缩小至14mm(λ/4),降低了天线剖面。测试结果说明,对于改善多层天线、缝隙耦合天线方向图特性,提升天线前后比,缩小天线厚度这种结构天线非常有效。
[Abstract]:Wideband microstrip antenna uses slot structure and multilayer structure. The sidelobe and rear lobe level of antenna pattern become larger while the impedance bandwidth is extended, which reduces the antenna performance and limits the application. The miniaturized metal EBG reflector has high impedance surface characteristics, which can be used to reduce the antenna thickness and improve the performance of the pattern. Through structural design and optimization, compared with the conventional reflector structure, the antenna front and back ratio is raised by 1.29 dB, and the maximum sidelobe level is reduced by 3.16 dB. The distance from the antenna to the reflector is also reduced to 14mm (位 / 4), reducing the antenna profile. The test results show that this kind of structure antenna is very effective in improving the pattern characteristics of multi-layer antenna, slot coupling antenna, raising the ratio of antenna to front and back, and reducing the antenna thickness.
【作者单位】：哈尔滨工程大学信息与通信工程学院;集美大学信息工程学院;
【基金】：福建省科学技术厅重点项目(2013H0035) 厦门市科技计划项目重大科技创新平台项目(3502Z20123028) 黑龙江省自然科学基金重点项目(ZD201115)
【分类号】：TN822

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