一种新型的具有带阻特性的超宽带天线

一种新型的具有带阻特性的超宽带天线

内容简介：设计制作了一种新型的具有带阻特性的超宽带微带天线。采用在六边形辐射贴片上开一对称的U形槽,实现了天线的带阻特性。仿真结果表明,可以方便地通过改变U形槽的宽度来改变阻带的位置和宽度。可实现天线频带宽度( S11≤-10 dB)为3.015 GHz~13.270 GHz,相对带宽达126%,并能精确阻隔WLAN(5.725 GHz~5.85 GHz)频率段,实验结果表明该天线适用于超宽带系统的应用。

Abstract：A novel UWB micro-strip antenna with band-notched characteristics was designed and manufactured. Using a hexagons patch as the radiation element and cutting a pair of symmetrical U-shaped slot,the band-notched characteristics of the antenna was realized. Simulated results show that the width of the U-shaped slot determined the center frequency and the bandwidth of the notched band. With the presented design,the bandwidth(return loss≤-10 dB)starts from 3. 015 GHz up to 13. 270 GHz that means a relative bandwidth of 126% and it effectively eliminates the 5. 725 GHz~5. 85 GHz WLAN range. Measured results confirm that the proposed antenna is suitable for UWB applications.

作者：吴毅强, 张平平, 胡少文, 邓淼, 周辉林,

关键词：超宽带, U形槽, 带阻功能, WLAN,