Research on Optimal Beamforming Design of Ultra-low Frequency Antenna

被引：0
|
作者：
Shuai, Shuai [1 ,2 ,3 ]
Mengdi, Mengdi [1 ]
Shiyu, Shiyu [1 ]
Xiao, Xiao [1 ]
Guanjie, Guanjie [1 ]
Hongmei, Hongmei [1 ]
Shiyin, Shiyin [1 ]
机构：
[1] China Univ Min & Technol Xuzhou, Sch Informat & Control Engn, Xuzhou 221116, Peoples R China
[2] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China
[3] Xian Univ Posts & Telecommun, Shaanxi Prov Informat & Commun Network & Secur Lab, Xian 710121, Peoples R China
来源：
JOURNAL OF ELECTRONICS & INFORMATION TECHNOLOGY | 2023年 / 45卷 / 04期
关键词：
Rotating magnet antenna; Beamforming; Phase synchronization; MAGNET;
D O I：
10.11999/JEIT220119
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Considering the single defect of the transmitter of the existing mechanical ultra-low frequency antenna and the bottleneck of limited communication distance, In order to realize the miniaturization and longdistance transmission of ultra-low frequency electromagnetic signaling system, the theoretical innovation and engineering practice of low-frequency electromagnetic signaling technology of rotating permanent magnet mechanical antenna are carried out. The electromagnetic radiation theory of ultra-low frequency multi mechanical antenna in Multiple Input Single Output (MISO) scenario is explored, and the spatial magnetic field distribution model of multi mechanical antenna array based on three-phase induction motor is established. The simulation results show that the magnetic induction intensity can be increased by 3 dB in the near field by using the mechanical antenna array composed of three-phase induction motor. The ultra-low frequency near field optimal beamforming technology with multiple mechanical antennas is proposed, The simulation results show that when the initial phases between the antennas are equal, the field strength of the radial received magnetic field component is the largest. High precision synchronization is designed and principle prototype is setted up for testing, The experimental results show that the signal power increased by 6 dBm and transmission distance can reach 50 m by using binary antenna array.
引用
收藏
页码：1338 / 1345
页数：8
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