摘要
根据S波段穿墙雷达的实际要求,提出并设计了一种U形槽矩形微带天线,该天线需要具有宽频带、低剖面和宽波束的特性。U形槽可以产生较低的Q共振,有利于拓宽带宽。矩形贴片的大小为26.8×18.8mm2,贴片天线与接地平面的间距为4.2mm。除了开U形槽,地面开槽的表面截断电流可进一步拓宽HPBW。中心频率为3.25 GHz,带宽为18.5%(VSWR<2)。
According to the actual requirements of S band through wall radar, a U-slot rectangular microstrip antenna is proposed and designed, the antenna needs wide-band, low profile and wide beam characteristics. The U-slot can produce lower Q resonance and broaden the bandwidth. The size of the rectangular patch is 26.8×18.82 mm, the thickness between the patch antenna and the ground plane is 4.2mm. Apart from U-slot, the surface truncated currents on the ground can further expand the HPBW. The central frequency is 3.25 GHz, and the bandwidth is 15.4%(VSWR<2).
作者
吕佳欢
王学田
高洪民
杨志涛
饶聃
LYU Jia-huan;WANG Xue-tian;GAO Hong-min;YANG Zhi-tao;RAO Dan(School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China)
出处
《微波学报》
CSCD
北大核心
2018年第A01期127-130,共4页
Journal of Microwaves
关键词
U形缝隙天线
宽带
宽波束
U-slot antenna
wide bandwidth
wide beam-width
