具有双频带阻特性的超宽带天线的设计  

Design of UWB antenna with dual band-notched characteristic

作　　者：赵广雷[1] 龚龙艳 

机构地区：[1]四川大学电子信息学院,四川成都610065

出　　处：《电子元件与材料》2016年第3期64-66,共3页Electronic Components And Materials

摘　　要：设计了一款具有双频带阻特性的超宽带微带贴片天线。天线由50Ω矩形微带线馈电,频率覆盖范围为2.8-12 GHz。在天线辐射贴片上端开一对C形槽,实现了对3.3-3.6 GHz的Wi MAX频段的阻隔,并且在贴片下端使用阶梯结构实现了对5.15-5.825 GHz的WLAN频段的阻隔。对天线进行了加工与测试。结果表明,该天线的一对C形槽对Wi MAX频带阻隔作用明显,而阶梯结构不仅获得了在WLAN频段的带阻特性,而且与接地板上的矩形槽共同作用,还实现了天线的宽频带特性。天线的实测结果与仿真吻合良好。A simple ultra-wideband（UWB） antenna with dual band-notched characteristic was proposed. The antenna was fed by 50Ω microstrip line, of which the working band was 2.8-12 GHz. A pair of C-shaped slots on the radiating patch made the antenna getting band-notched characteristic in Wi MAX band（3.3-3.6 GHz）, and WLAN band（5.15-5.825 GHz） was rejected by the staircase structure at the lower end of the patch. The antenna was fabricated and measured. The results illustrate a pair of C-shaped slots on the antenna is obvious to the barrier of the Wi MAX band, and combined with the rectangular slot on the ground floor, the staircase structure not only gets band-notched characteristic in WLAN band, but also gets wide band characteristic. Good agreement between measurement results and simulation data is obtained.

关 键 词：超宽带天线 微带贴片 微带线馈电 双频带阻特性 开槽 阶梯结构 

分 类 号：TN82[电子电信—信息与通信工程]