小型化宽带平面全向天线

Miniaturized Wideband Planar Omnidirectional Antenna

设计了一款水平面全向辐射的探针馈电环缝隙天线。天线采用圆环贴片和短路过孔来拓展带宽,利用圆环TM02模式谐振频率稳定的特征来实现天线的小型化,并探讨了短路过孔位置、缝隙宽度、短路过孔尺寸对天线频带的影响。仿真结果表明,天线在5～6.76GHz的频率范围内,天线具有良好的辐射特性。

A center-fed circular patch antenna with shorting vias and a coupled annular ring is proposed. To broaden the bandwidth of the antenna, shorting vias and ring patch are used. The antenna is miniaturized by the resonant frequency stability of the ring TM02 mode. The effect of shorting vias position, gap width and shorting vias size on the antenna is discussed. The simulation results show that the antenna has good radiation characteristics in the frequency range of 5-6.76 GHz.