双阻带特性的超宽带单极子天线设计  

Ultra-wideband monopole antenna with dual band-notches

作　　者：崔恒荣[1] 陆云龙[1] 沈伟[1] 孙芸[1] 王伟[1] 孙晓玮[1] 

机构地区：[1]中科院上海微系统与信息技术研究所,上海200050

出　　处：《电波科学学报》2013年第1期137-141,共5页Chinese Journal of Radio Science

基　　金：国家973计划资助项目(2009CB320207)

摘　　要：设计了一种具有双阻带特性的超宽带单极子天线,对嵌入开路微带谐振器和边缘相似谐振器进行了分析.利用这两种谐振器可以分别在Wimax(3.33～6GHz)和WLAN(5.15～5.85GHz)两个频段产生阻带.通过改变天线几何尺寸,可以分别对阻带的中心频率和带宽独立控制.天线利用印刷线路板(PCB)技术加工实现,并对其阻带特性、回波损耗、辐射方向图、辐射效率和峰值增益进行了测试,测试结果和仿真结果吻合很好.A simple ultra-wideband （UWB） monopole antenna with dual band- notches is presented in this paper. Embedded open stub resonator and edge-similar stub resonator are investigated to obtain the dual band-notched functions, respec- tively. The dual band notches include theIEEE 802.16 （WiMax） band （3.3-3.6 GHz）, and the wireless local area network（WLAN） band （5. 15-5.85 GHz）. By controlling the geometrical parameters of the proposed resonators, the center fre- quencies and bandwidths of the notches can be controlled independently. Prototype of proposed antenna is fabricated with the standard printed circuit-board（PCB） technology. The band-notched characteristics, return loss, radiation pattern, peak gain and efficiency of the antenna are measured. A good agreement is achieved be- tween simulated and measured results.

关 键 词：双阻带 开路谐振器 边缘相似谐振器 超宽带 

分 类 号：TN911[电子电信—通信与信息系统]