一种阶梯型结构的双陷波超宽带单极天线的研究与设计
Design of a staircase shaped UWB monopole antenna with dual band notches
张文辉 1李萍 2安合志 1王蕾蕾1
作者信息
- 1. 武警工程大学研究生大队,陕西西安 710086
- 2. 武警工程大学通信工程系,陕西西安 710086
- 折叠
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.
Abstract
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 commu-nication systems.
关键词
超宽带天线/共面波导/宽缝隙天线/双陷波特性Key words
UWB antenna/coplanar waveguide/monopole antenna/dual band notches引用本文复制引用
基金项目
陕西省自然科学基金(2010JM8041)
陕西省自然科学基金(2012JQ8026)
出版年
2012
NETL
NSTL
维普
万方数据