摘要
设计了一种双陷波的共面波导馈电的超宽带单极天线.天线的辐射单元和接地面采用阶梯型结构,实现了良好的阻抗匹配.通过在辐射单元上加载C形结构和在共面波导微带线上加载倒U形结构,分别实现了对WIMAX和WLAN频段的频带抑制.仿真结果表明,天线的工作带宽为9 GHz(2.5～11.5 GHz),覆盖了整个UWB频段,同时在3.3～3.7 GHz和5.15～5.85 GHz处形成两个阻带.天线总尺寸为20 mm×26 mm×1.6 mm,结构简单利于集成,适合在超宽带通信系统中使用.
A staircase UWB monopole antenna with dual band notches is presented in this paper.The proposed antenna with a small size of 20 mm×26 mm×1.6 mm consist of a staircase shaped radiation element and symmetrical staircase shaped ground plane.Dual band-notched characteristic is achieved by inserting slots in radiation element and CPW-fed line.From the results of emulation,this antenna can satisfy the applications of ultra wideband wireless communications covering 2.5~11.5 GHz band-width and the two rejected bands are formed at 3.3~3.7 GHz and 5.15~5.85 GHz.The simple configuration with low profile of the proposed antenna leads to widely use in UWB communication systems.
出处
《苏州大学学报（自然科学版）》
CAS
2012年第4期36-40,共5页
Journal of Soochow University(Natural Science Edition)
基金
陕西省自然科学基金(2010JM8041
2012JQ8026)
