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研究了基于TEM喇叭天线的辐射波模拟器天线性能,分析了天线性能参数如结构角、天线长度、宽高比等对天线辐射性能的影响。为了提高天线低频辐射能力,提出了2种增加天线有效长度的方法,结果表明两种方法均在一定程度上对辐射场波形有所改善。在天线长度的选择符合工程实际的条件下,通过选择合适的宽高比和增加天线有效长度的方法取得了较好的场波形。
The performance of the radiation antenna simulator antenna based on the TEM horn antenna is studied. The influence of antenna performance parameters such as structure angle, antenna length and aspect ratio on the antenna radiation performance is analyzed. In order to improve the low frequency radiation ability of the antenna, two methods for increasing the effective length of the antenna are proposed. The results show that the two methods all improve the waveform of the radiation field to a certain extent. Under the condition that the choice of antenna length is in line with the actual project, a good field waveform is obtained by selecting the appropriate aspect ratio and increasing the effective length of the antenna.