The Ultra-Compact ELF Magneto-Mechanical Transmission Antenna With the Speed Modulated EM Signal Based on Three-Phase Induction Motor

Han, Junfeng; Geng, Junping; Wu, Haobo; Wang, Kun; Zhou, Han; Ren, Chaofan; Hayat, Qaisar; Zhao, Xiaonan; Yang, Silei; He, Chong; Liang, Xianling; Jin, Ronghong; Ma, Bo; Shen, Jingshi

doi:10.1109/tap.2021.3060149

Cited by 27 publications

(3 citation statements)

References 20 publications

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“…ELF spinning permanent magnet transmitters were demonstrated in Refs. [ [7] , [8] , [9] , [10] ]. Efficient modulation techniques for spinning permanent magnet were also explored in Ref.…”

Section: Introductionmentioning

confidence: 99%

An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communications

Zhang,

Wang,

Cao

et al. 2024

Heliyon

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“…ELF spinning permanent magnet transmitters were demonstrated in Refs. [ [7] , [8] , [9] , [10] ]. Efficient modulation techniques for spinning permanent magnet were also explored in Ref.…”

Section: Introductionmentioning

confidence: 99%

An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communications

Zhang,

Wang,

Cao

et al. 2024

Heliyon

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“…Одним из вариантов решения проблемы является развёртывание точки доступа Wi-Fi [5] на основе стандартов IEEE 802.11 [6]. Однако рабочий диапазон радиоволн (ELF и SLF [7]) не позволяет эффективно использовать технологию на сильно пересеченной местности на больших расстояниях.…”

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Decentralized Protocol for Organizing Sustainable Interaction between Subscribers in Networks with High Dynamics of Topology Changes

Ivutin,

Novikov,

Pestin

et al. 2024

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Emergency services often have to carry out rescue and liquidation operations in the absence of centralized communications. The inability to ensure stable communication between members of the rescue unit significantly reduces the quality of work. Moreover, in modern realities, stable communication means not only voice exchange, which can be provided by shortwave radio transmitters, but also intensive exchange of large volumes of traffic. The use of standard solutions based on standard network equipment (Wi-Fi, satellite communications, etc.) and existing algorithms for ensuring quality of service in the conditions under consideration does not allow quickly ensuring information exchange between heterogeneous subscribers. Moreover, operation in high-Hz bands can be very difficult in the presence of obstacles, which reduces the overall coverage area and the quality of data transmission. We propose a network layer routing protocol designed to organize decentralized communication in an emergency service department, where subscribers have different degrees of mobility and types of transmitted traffic. This protocol includes algorithms for connecting to the network, detecting optimal and alternative communication routes, and transmitting and balancing traffic along the found routes. The original route search algorithm analyzes the performance of communication channels and determines all possible paths for transmitting traffic between subscribers. Using the route evaluation function based on gradient boosting of decision trees, optimal and alternative communication routes are formed, and when transmitting data, traffic balancing is performed based on the received information. An experimental study of the proposed protocol showed an improvement in the speed of deployment and quality of service in scenarios with varying degrees of subscriber mobility.

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“…Under vibration state, the magnetic intensity is theoretically analyzed. As shown in figure4, the magnetic density at random position P(y p , z p ) is given by[27]…”

mentioning

confidence: 99%

A mechanical antenna for long-wave communication by integrating piezoelectric material and magnets

Wang,

Zhao,

Zhang

et al. 2024

Phys. Scr.

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The Chu's limit imposes a significant challenge for traditional antennas operating at extremely low frequencies, as they require a large size due to the long operating wavelength, thus limiting their applicability. To reduce the antenna size, this paper proposes a vibrating beam system for long-wave communication that leverages the inverse piezoelectric effect, vibration theory, and Maxwell's equations. A prototype utilizing beam structures is developed and examined experimentally. Furthermore, the frequency modulation of the vibrating beam system and signal transfer protocol are investigated in detail. The experimental results demonstrate that exciting different vibration modes of the vibrating beam system leads to varied electromagnetic signals in specific rules, enabling long-wave communications and ensuring confidentiality. This work offers valuable insights into the potential of local information exchange among close-range platforms. It also highlights the promising approach of integrating piezoelectric material and magnets within the vibrating beam system, showcasing their potential towards practical applications in long-wave communication.

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The Ultra-Compact ELF Magneto-Mechanical Transmission Antenna With the Speed Modulated EM Signal Based on Three-Phase Induction Motor

Cited by 27 publications

References 20 publications

An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communications

An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communications

Decentralized Protocol for Organizing Sustainable Interaction between Subscribers in Networks with High Dynamics of Topology Changes

A mechanical antenna for long-wave communication by integrating piezoelectric material and magnets

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