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文章研究了超宽频带对数周期偶极子天线(LPDA)的结构,对15~110MHz超宽频带对数周期偶极子天线的尺寸参数进行了设计,根据设计分析,对于超短波波段超宽频带对数周期偶极子存在的天线纵向尺寸较大的问题对该天线纵向尺寸进行了设计创新,从而使天线在包括工作带宽、增益、方向图等电特性参数不变差的前提下使纵向尺寸设计值从29.4329m缩短到18.6218m,缩小了37%。
In this paper, we study the structure of LPDA (Logarithmic Periodic Dipole Antenna) and design the dimension parameters of logarithmic periodic dipole antenna in 15 ~ 110MHz ultra-wide band. According to the design analysis, Logarithmic periodic dipole exists in the antenna longitudinal size of the larger issues on the vertical length of the antenna design innovation, so that the antenna including the working bandwidth, gain, pattern and other electrical characteristics of the same parameters under the premise of the vertical size The design value is shortened from 29.4329m to 18.6218m, a reduction of 37%.