Study on miniaturized super low frequency(SLF) transmitting antenna

A new type of SLF antenna based on motor rotator is proposed. The size of the antenna is no longer limited by frequency. The antenna consists of a rotating magnetic dipole. The frequency of the signal can be controlled by the rotational speed. In order to facilitate analysis and understanding, the rotating magnetic field generated inside the motor can be equivalent to a rotating magnetic dipole which is a miniaturized SLF antenna. The simulation fields at SLF band are consistent with the theoretical derivation, which also proves that the derivation is correct.