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通过对TEM喇叭天线低频补偿的实验,验证了低频补偿原理的正确性。低频补偿可以改善TEM喇叭天线的低频传输特性及低频辐射特性。当TEM喇叭天线与低频补偿回路形成电偶极子和磁偶极子满足匹配条件时,天线低频辐射的单向性将得到提高。当天线的低频补偿回路形成的磁偶极矩足够大时,低频补偿可增大天线主辐射方向的辐射,并改善天线低频辐射特性。
Through the experiment of low-frequency compensation of TEM horn antenna, the correctness of low-frequency compensation principle is verified. Low-frequency compensation can improve the low-frequency transmission characteristics and low-frequency radiation characteristics of TEM horn antenna. When the TEM horn and low-frequency compensation loop to form electric dipole and magnetic dipole meet the matching conditions, the antenna low-frequency radiation will be improved one-way. When the magnetic dipole moment formed by the low-frequency compensation loop of the antenna is large enough, the low-frequency compensation can increase the radiation in the main radiation direction of the antenna and improve the low-frequency radiation characteristics of the antenna.