摘要
目前超宽带无线通信成为研究的热点，同时对天线的研究提出新的挑战。提出了一种小型超宽叉形微带天线结构，首次采用对地板做开一个半圆形缝隙处理，提高了天线辐射性能，而对其他参数影响不大．通过数值模拟，该天线主抗带宽为3．5～14GHz，基本覆盖了FCC建议的频段。其在XZ面具有良好的全向，在YZ平面辐射图具有很好的稳定性。此天线结构具有良好的辐射特性，基本满足了超宽带通信对天线的要求。
At present,the Ultra- Wideband（UWB） wireless communication becomes research hotspot, a new challenge to the antenna＇s research is needed. A new kind of small UWB fork- shaped microstrip antennas is proposed, a semicircle slit processing on the ground is first adopted, the antenna radiation has been enhanced, but it has not big influence to other parameter. Through the numerical simulation, this antenna bandwidth is 3.5 ~ 14 GHz, the FCC suggestion frequency band is covered basically. It has good omnidirectional in the XZ plane, and has very good stability radiation pattern in the YZ plane. This antenna has a good radiation characteristic,and basically has satisfied the ultra- wide band request to the antennas.
出处
《现代电子技术》
2009年第1期41-42,46,共3页
Modern Electronics Technique
关键词
微带天线
半圆缝隙
超宽带
辐射图
microstrip antenna
semieircle slit
UWB
radiation patterns
