摘要
提出一种宽缝结构超宽带天线的改进设计方案,该天线的宽缝设计为半圆形,馈电微带线的终端设计为六边形,微带线的特性阻抗设计为75欧姆。通过数值仿真和实验测量对天线的阻抗特性、方向图和增益进行了研究。实测结果表明,该天线工作频段覆盖1.96GHz^15.4GHz,工作频段内驻波比小于2,并且在整个工作频段内具有良好的辐射方向特性。
An improved ultra-wideband wide-slot antenna is proposed. The design is half-circle for the wide-slot of antenna; the terminal of the microstrip-line is a hexagon patch, and the characteristic impedance of the microstrip-line is designed to be 75Ω. The antenna has been numerically and experimentally studied for its impedance bandwidth, radiation patterns and gains. The actual results show that the proposed antenna has a frequency band from 1.96 to 15.4 GHz for voltage stand wave ratio （VSWR） lower than 2.0. And a good radiation performance over the entire frequency range may be achieved.
出处
《山西电子技术》
2007年第4期54-56,共3页
Shanxi Electronic Technology
关键词
超宽带
微带天线
宽缝隙天线
特性阻抗
ultra-wideband
microstrip antennas
wide-slot antenna
characteristic impedance
