一种带状线馈电的新型宽带印刷偶极子天线

本文在分析传统微带巴伦馈电印刷偶极子天线的基础上,对天线馈电形式及辐射振子结构进行了改进设计,通过将馈电网络设计为带状线形式,并采用两面对称的辐射振子结构,提出了一种带状线馈电的新型宽带印刷偶极子天线,这类天线具有较宽的阻抗带宽(驻波小于2的带宽可做到45%以上)。这种新型带状线馈电印刷偶极子天线的馈电网络适于与天线阵的馈电网络进行一体化设计,适合于用印刷电路技术大批量生产,是大型天线阵的一种理想的辐射单元形式。

Novel broadband printed dipole antenna fed by strip line

On the basis of analyzing traditional printed dipole antenna with microstrip balun feed,a novel broadband printed dipole antenna fed by strip line was proposed.By improving the structure of antenna feed form as well as the radicalization oscillator,the feed network was designed as strip line.The structure of strip line feed and symmetrically double-faced radiators were adopted.This proposed antenna achieves broader impedance bandwidth.The experimental results indicate that an SWR of less than 2 over bandwidths could be in excess of 45 percent.This strip line feeding structure was easily integrated with the feeding network of antenna array,and readily amenable to mass production with printed circuit technology.This antenna was properly treated as a seemly radiation element in array antennas.