一种改进的共面波导馈电超宽带天线设计  

Design of an improved CPW-fed UWB antenna

作　　者：周超[1] 曹海林[1] 杨力生[1] 

机构地区：[1]重庆大学通信工程学院,重庆400044

出　　处：《重庆邮电大学学报（自然科学版）》2008年第1期39-41,共3页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

摘　　要：提出了一种具有带阻特性的超宽带（UWB）共面波导（CPW）馈电平面圆形单极子天线的设计方法，采用该方法设计的天线完全满足超宽带无线通信所要求的3．1～10．6GHz频带范围，并且通过在圆形贴片上添加U型缝隙实现了4．85～5．87GHz频段上电压驻波比VSWR≥2：1的带阻特性。采用电磁场仿真软件HFSS绘出了天线方向图，仿真结果表明该设计实用、可行。A design of CPW fed planar circular monopole UWB antenna with band-notched character is presented. This antenna can satisfy the applications of ultra wide-band wireless communications covering 3. 1-10.6GHz band- width, and achieve band-notched character between 4.85GHz and 5.87GHz （VSWR〉2： 1） through adding U-slot on the circular patch. The radiation patterns is illustrated with the electromagnetic simulation software HFSS, and the results indicate that the design is reasonable and practicable.

关 键 词：超宽带天线 平面单极子天线 共面波导 阻带 方向图 

分 类 号：TN820.11[电子电信—信息与通信工程]