Open AccessResearch on Mechanical Antenna Performance Based on Rotating Permanent Magnet Triangle Array
Author(s) -
Jianqiang Bao,
Yanwei Tian,
Weili Yan,
Qiuping Yi,
Na Li
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1971/1/012005
Subject(s) - magnet , miniaturization , antenna (radio) , acoustics , dipole antenna , electrical engineering , antenna measurement , loop antenna , low frequency , physics , engineering , computer science , coaxial antenna , telecommunications
Traditional low-frequency antennas have larger volume and higher energy consumption. These characteristics make the traditional antennas easy to be destroyed by the enemy and expensive to maintain. In this paper, a mechanical antenna based on triangular array of rotating permanent magnets is introduced, and a prototype is made according to the proposed theoretical assumptions. Different from the traditional electric antenna, the mechanical antenna adopts the way of motor driving the permanent magnet to rotate, which realizes the miniaturization of the low-frequency transmitting antenna. In this paper, the analytical model of the rotating magnetic dipole is presented. By comparing the simulation results and the experimental data with the theoretical calculation results, it is proved that the mechanical antenna based on the rotating permanent magnet array can emit low-frequency sinusoidal electromagnetic waves, which has a broad application prospect in the Ultra-Low-Frequency/Very-Low-Frequency (ULF/VLF) communication field.