Research on Optimal Beamforming Design of Ultra-low Frequency Antenna

MA Shuai; GAO Mengdi; CAO Shiyu; FANG Xiao; ZHANG Guanjie; WANG Hongmei; LI Shiyin

doi:10.11999/JEIT220119

Volume 45 Issue 4

Apr. 2023

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Article Navigation > Journal of Electronics & Information Technology > 2023 > 45(4): 1338-1345

MA Shuai, GAO Mengdi, CAO Shiyu, FANG Xiao, ZHANG Guanjie, WANG Hongmei, LI Shiyin. Research on Optimal Beamforming Design of Ultra-low Frequency Antenna[J]. Journal of Electronics & Information Technology, 2023, 45(4): 1338-1345. doi: 10.11999/JEIT220119

Citation:

MA Shuai, GAO Mengdi, CAO Shiyu, FANG Xiao, ZHANG Guanjie, WANG Hongmei, LI Shiyin. Research on Optimal Beamforming Design of Ultra-low Frequency Antenna[J]. Journal of Electronics & Information Technology, 2023, 45(4): 1338-1345. doi: 10.11999/JEIT220119

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Research on Optimal Beamforming Design of Ultra-low Frequency Antenna

doi: 10.11999/JEIT220119

1.
School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China
2.
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
3.
Shaanxi Province Information and Communications Network and Security Laboratory, Xi’an University of Posts and Telecommunications, Xi’an 710121, China

Funds: The Open Research Fund of National Mobile Communications Research Laboratory, Southeast University (2021D02)

Received Date: 2022-01-27
Rev Recd Date: 2022-06-28

Available Online: 2022-07-01

Publish Date: 2023-04-10

Abstract

Abstract

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 long-distance 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.
- Rotating magnet antenna,
- Beamforming,
- Phase synchronization

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References(15)

References

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