水平极化全向天线的设计

The Design of Omnidirectional Antenna with Horizontal Polarization

提出了水平极化全向天线的一种通用设计方法,通过辐射单元的排列得到了水平全向的方向图,有源阻抗匹配后获得了较宽的频带。该设计使天线的全向性起伏小于0.5 dB,增益大于2 dB,交叉极化优于-15dB,1.5以下的驻波带宽大于20%。

A common method is presented here to design the omnidirectional antenna with horizontal polarization. An optimized the omnidirectionality of the antenna is obtained by arranging the radiators properly. After matching the active impedance of the antenna, we achieved a medium impedance bandwidth. For this antenna, the variations in the azimuth plane is less than 0.5 dB, the gain is greater than 2dB, the cross-polar level is superior than - 15dB, within more than 20% bandwidth the VSWR is below 1.5.