一种具有双阻带特性的超宽带单极子天线设计

内容简介：为克服无线通信中系统间的相互干扰，采用频带抑制技术设计了一种具有双阻带特性的超宽带单极子天线。首先采用共面波导进行馈电，辐射贴片和共面波导均为阶梯结构，使其在2．9—12GHz频带内电压驻波比小于2；其次在辐射贴片上分别引人C形和倒U形槽谐振结构，使其在3．3—3．9GHz和5．1～5．9GHz的频带内电压驻波比大于2；最后通过仿真与测量，验证该天线实现了良好的频带抑制功能。

Abstract：In wireless communication systems, in order to overcome the mutual interference between systems, an UWB monopole antenna with dual band-notched characteristic is proposed using band-suppressed technology. Firstly, a step- structure radiation patch which is fed by CPW is designed to obtain the voltage standing wave ratio (VSWR) less than 2 in frequency band 2.9 ~ 12GHZ. Secondly, C-shape and pour U-shape resonant slots are introduced separately on the radiation patch to obtain band-notched characteristic. After optimization, the simulation results show that the VSWR of the antenna has greater than 2 value in 3.3 - 3.9GHz and 5. 1 - 5.9GHz frequency band. Finally, the antenna was fabricated and tested. The simulation and measurement result show that they matched very well and demonstrated that the frequency band-sup- pressed function of the antenna is well achieved

作者：吕金榜, 赵惠玲, 朱丽军, 周占伟,

关键词：超宽带, 双阻带特性, 共面波导,