摘要
在超宽带频段中存在着许多其它系统的工作频段,系统间的相互干扰的问题是一个亟需解决的问题。而陷波是一个简单有效的方法。为此提出了一种新型具有双陷波特性的小型超宽带微带天线。首先介绍了以圆形微带单极子天线为原型,由微带线进行馈电。然后通过在馈电微带两边加辐射贴片和在地板上开U型槽分别实现了对无线局域网和WiMax频段的陷波,从而避免了超宽带频段与其它波段之间的干扰。仿真和实测结果显示,微带单极子天线工作在超宽带频段,且具有良好的陷波特性。非常适用于实际超宽带系统中。
A novel UWB monopole antenna with dual band-notched property was proposed in this paper. There are some other systems working in the frequency band of UWB systems. The interference between these systems is an urgent problem to address, and notching is a simple but effective way to solve it. This design was based on circular patch monopole antenna and fed by micro-strip line. Printing radiation units on both sides of the fed micro-strip line and inserting a U-shaped slot in the ground plane can notch the frequency bands of WLAN and WiMax respectively, so as to inhibit the interference between UWB system and some other systems. A prototype of the presented antenna has been fabricated and experimentally studied. Both the simulation and measurement results have demonstrated that such antenna owns excellent band-notched characteristics in the UWB band and is suitable for practical UWB systems.
出处
《计算机仿真》
CSCD
北大核心
2013年第1期250-253,共4页
Computer Simulation
关键词
双陷波特性
超宽带
微带单极子天线
Dual band-notched
Uhra-wideband
Circular patch monopole antenna
