A Brief Analysis of the Latest Research Progress and Future Direction of Low-frequency Transmitting Antenna

Low frequency electromagnetic wave is widely used in global communication and underwater vehicle communication because of its long propagation distance. However, due to the long wavelength of the electromagnetic wave in this frequency band, low-frequency transmitting antennas (LTAs) usually have the problems of large size, high profile height and low efficiency. Engineers have struggled for decades to design miniaturized, efficient low-frequency transmitting antennas. In this paper, the form of traditional LTAs is briefly sorted out, and the latest research progress of miniaturized low-frequency antenna is summarized, and its future development direction is simply analyzed.