摘要
为满足无线体域网(wireless body area network,WBAN)应用中对超宽带天线的陷波要求,采用在槽孔型的辐射贴片上添加十字型枝节谐振器的方法优化设计了一款超宽带陷波天线。天线使用共面波导方式馈电,使天线获得较宽的带宽。通过嵌入十字型枝节谐振器调谐天线的阻抗,实现陷波特性。通过仿真分析确定谐振器横、竖枝节的尺寸范围。利用量子进化算法对谐振器的横、竖尺寸进行优化,获取使天线的陷波频带达到最佳要求的谐振器尺寸参数。根据优化结果制作实物天线,天线的带宽为3.4-9.9 GHz,陷波频段为5.2-5.8 GHz。由天线回波损耗及方向图的仿真和测试结果表明,该优化设计方法是有效的。
In order to meet the requirements of antenna＇s band trap for Wireless Body Area Network（ WBAN） system,a UWB Band-Notched antenna is optimized by adding criss-cross stub resonator on the slot radiating patch. A broad bandwidth is got by using coplanar waveguide feed. Through embedding stub structure,a blocking is generated. The influence of horizontal,vertical side length of stub resonator is simulated and analyzed to determine the size range of the resonators.Quantum-inspired evolutionary algorithm（ QEA） is used to optimize geometric parameters of stub structure for the most appropriate notched band. The antenna is made according to the optimization results,and the antenna bandwidth is 3. 4 ~ 9.9GHz,the band trap is 5. 2 ~ 5. 8GHz. The simulated and measured results of the designed antenna return loss and antenna patterns indicate that the optimization design method is effective.
出处
《重庆邮电大学学报（自然科学版）》
CSCD
北大核心
2015年第2期229-234,共6页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金
国家自然科学基金项目(61471075)~~
