A Rotating Permanent Magnet Transmitter for Magnetic Induction Communication in RF-impenetrable Environment

Liu, Yu; Hou, Muyu; Gong, Sen

doi:10.1109/nemo49486.2020.9343610

Cited by 5 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The communication system which uses RPMA as the transmitter mostly adopts direct antenna modulation (DAM). For example, we can obtain an OOK signal by controlling the driver switch and an FSK signal by controlling the speed of motion [16][17][18][19][20]. Besides, Refs.…”

Section: Introductionmentioning

confidence: 99%

Research on Ultra-Low-Frequency Communication Based on the Rotating Shutter Antenna

Sun

Zhang

et al. 2022

Electronics

View full text Add to dashboard Cite

This paper proposes a rotating shutter antenna that can directly generate 2FSK signals in the ULF band and it is expected to be used as the transmitter for magnetic induction (MI) underground communication systems. The antenna was modeled using ANSYS Maxwell and the magnetic field distribution was simulated. The results show that the interaction between the high-permeability shutter and the mutual cancellation of magnets decreased the transmitting magnetic moment of the antenna. A prototype antenna was manufactured and the time and frequency properties of the measured Bz field were the same as the simulated results, while the magnitude of the measured signal was larger. The propagation characteristics of the antenna in air–soil–rock were simulated using FEKO and the results show that the signal strength was greater than 1 fT at a depth of 450 m from the antenna whose magnetic moment as 1 Am2. The relationship between different magnetic components and azimuth could be used to enhance the signal strength. The formula of the Bz field was derived using the measured magnitude versus distance and the path loss was also analyzed. Finally, the 2FSK modulation property of the antenna was verified by indoor communication experiments with a code rate of 12.5 bps in the ULF band.

show abstract

Section: Introductionmentioning

confidence: 99%

Research on Ultra-Low-Frequency Communication Based on the Rotating Shutter Antenna

Sun

Zhang

et al. 2022

Electronics

View full text Add to dashboard Cite

show abstract

“…Mechanical antennas, as a newly emerged category of compact low frequency antenna, can be divided into motor-driven antenna and acoustically driven antenna. Motor-driven antenna utilizes a motor to drive permanent magnets or electret materials pieces [34][35][36], the magnetic dipole or electric charge contained in the materials is physically driven to motion to generate EM radiation in space. However, the performance of motor-driven antenna is highly constrained by the performance of the motor in terms of its rotation speed and the ability of fast switching between two operating states, efforts [37] have been put into the research of modulation scheme to overcome the second constraint.…”

Section: Vlf Communication and Mechanical Antennasmentioning

confidence: 99%

Magnetic and magnetoelectric devices for communication and energy harvesting applications

View full text Add to dashboard Cite

Magnetic materials have a long history of usage and play an important role in modern instruments or devices like motor, electrical generator, and transformer, etc. With the development of solid-state physics, the magnetic properties and theories beyond the magnetic static states have been studied and utilized including the magnetostatic wave propagation, magnetization oscillation and spintronics, which enable a wide variety of new applications especially for high frequency integrated electronics and magnetic storage.Magnetoelectrics (ME) refers to the coupling between the magnetism and electricity.

show abstract

Rotating Permanent Magnet Antenna Array Based on Near-Field Polarization Modulation

Sun

Zhang

et al. 2022

Antennas Wirel. Propag. Lett.

View full text Add to dashboard Cite

A Rotating Permanent Magnet Transmitter for Magnetic Induction Communication in RF-impenetrable Environment

Cited by 5 publications

References 10 publications

Research on Ultra-Low-Frequency Communication Based on the Rotating Shutter Antenna

Research on Ultra-Low-Frequency Communication Based on the Rotating Shutter Antenna

Magnetic and magnetoelectric devices for communication and energy harvesting applications

Rotating Permanent Magnet Antenna Array Based on Near-Field Polarization Modulation

Contact Info

Product

Resources

About