【作者】 许进； 宗显政； 聂在平； 兰卓； 赵铁瑞；

【Author】 XU Jin;ZONG Xianzheng;NIE Zaiping;LAN Zhuo;ZHAO Tierui;University of Electronic Science and Technology of China;

【机构】 电子科技大学；

【摘要】 本文设计了一种低剖面(0.037λ_max)的双圆极化微带天线,通过加载寄生贴片使其驻波比小于2的相对带宽达到13.4%,同时在工作频段内实现E面±70°内轴比小于3 dB,通过8单元组阵的方式在满足中心频点E面±70°内5 dBi以上增益的前提下保证良好的驻波性能和圆极化性能（有源驻波小于3,轴比小于3 dB）。相较传统的微带天线,在保持低剖面的同时,大大提升了工作带宽及扫描角度。更多还原

【Abstract】 In this paper,a dual-circularly polarized microstrip antenna with low profile(0.037λmax) is designed,and the relative bandwidth of VSWR<2 reaches 13.4% by loading parasitic patches,and at the same time AxialRatio <3 dB within 70° of E plane ±in the working frequency band,the standing wave performance and circular polarization performance are guaranteed(ActiveVSWR<3,AxialRatio<3 dB) by 8-unit array to meet the gain of more than 5 dBi within ±70° of the E plane of the center frequency point.Compared with traditional microstrip antennas,while keeping a low profile,the working bandwidth and scanning angle are greatly improved.更多还原