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.

The low-frequency-compensation principle for TEM-horn antenna was verified by experiment. The low frequency transmission and radiation characters were improved by the low-frequency-compensation. When the magnitudes and directions of the electric and magnetic dipoles were matched, the radiation in backward and sideward direction was obviously restrained. When the magnetic dipole moment made by low-frequency-compensation loop was large enough, the magnitude of radiation in forward direction would be enhanced and the low frequency component would be increased.