Transceiving Signals by Mechanical Resonance: A Miniaturized Standalone Low Frequency (LF) Magnetoelectric Mechanical Antenna Pair With Integrated DC Magnetic Bias

Niu, Yunping; Ren, Hao

doi:10.1109/jsen.2022.3183012

Cited by 30 publications

(7 citation statements)

References 57 publications

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“…5 (2024) 058502 058502-18 而将辐射效率提高100倍, 并扩大了带宽 [121] . 由于磁电耦合系数与外加偏置磁场有关, 所以有些研究通过整合外加永磁体或者外加线圈的方式, 增大偏置磁场, 从而提高辐射效率 [122,123] . 受多输入多输出(multiple-input multiple-output, MIMO)天线的启发, 同样可以通过并联多个磁电天线实现天线阵列, 增强辐射场强度和提高辐射效率 [124] .…”

Section: 磁电天线unclassified

Magneto-acoustic coupling: Physics, materials, and devices

Chen,

Ma,

Pan

et al. 2024

Acta Phys. Sin.

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Acoustic waves in solids have two modes of propagation: the bulk acoustic wave (BAW), which propagates inside solids in the form of longitudinal or transverse wave, and the surface acoustic wave (SAW), which is generated on the surface of solids and propagates along the surface. Acoustic radio frequency (RF) technologies utilize acoustic waves to intercept and process RF signals, which are typified by the rapidly developing RF filter technology. Acoustic filters have the advantages of small size, low cost, steady performance and simple fabrication, and are widely applied in mobile communications and other fields. Due to the mature fabrication process and well-defined resonance frequency of acoustic devices, acoustic wave has become an extremely intriguing way to manipulate magnetism and spin current, with the goal of pursuing miniaturized, ultra-fast, and energy-efficient spintronic device applications. The integration of magnetic materials into acoustic RF devices has also provided a new way of thinking about the means of acoustic device modulation and performance enhancement. This review firstly summarizes various physical mechanisms of magneto-acoustic coupling, and then based on these mechanisms, a variety of magnetic and spin phenomena such as acoustically controlled magnetization dynamics, magnetization switching, magnetic domain wall and magnetic skyrmions generation and motion, and spin current generation are systematically introduced. In addition, the progress of research on magnetic control of acoustic wave, the inverse process of acoustic control of magnetism, is discussed, including the magnetic modulation of acoustic wave parameters and nonreciprocal propagation of acoustic waves, as well as new magneto-acoustic devices developed based on this, such as SAW-based magnetic field sensors, magneto-electric antennas, tunable filters, and so on. Finally, possible future research goals and applications of magneto-acoustic coupling are envisioned. In summary, the field of magneto-acoustic coupling is still in a stage of rapid development, and a series of groundbreaking breakthroughs have been made in the last decades, and this paper summarizes the major advances in this field. The field of magneto-acoustic coupling is expected to make further significant breakthroughs, and we hope that this review will further advance the physical phenomena of the coupling between magnetism and acoustic wave, spin and lattice, as well as the potential device applications.

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Section: 磁电天线unclassified

Magneto-acoustic coupling: Physics, materials, and devices

Chen,

Ma,

Pan

et al. 2024

Acta Phys. Sin.

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“…In the aforementioned studies, it can be consistently observed that achieving an optimal radiation intensity for ME antennas often requires a direct current (DC) biased magnetic field [ 10 ]. Regardless of whether coils or permanent magnets are used to provide this magnetic field, it results in an increase in the volume and mass of ME antennas, posing challenges for miniaturization and lightweight design [ 10 , 22 , 23 ]. These challenges underscore the critical need for ongoing innovation in the pursuit of efficient and compact ME antenna designs in VLF applications.…”

Section: Introductionmentioning

confidence: 99%

Self-Biased Magneto-Electric Antenna for Very-Low-Frequency Communications: Exploiting Magnetization Grading and Asymmetric Structure-Induced Resonance

Leung,

Zheng,

Yang

et al. 2024

Sensors

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VLF magneto-electric (ME) antennas have gained attention for their compact size and high radiation efficiency in lossy conductive environments. However, the need for a large DC magnetic field bias presents challenges for miniaturization, limiting portability. This study introduces a self-biased ME antenna with an asymmetric design using two magneto materials, inducing a magnetization grading effect that reduces the resonant frequency during bending. Operating principles are explored, and performance parameters, including the radiation mechanism, intensity and driving power, are experimentally assessed. Leveraging its excellent direct and converse magneto-electric effect, the antenna proves adept at serving as both a transmitter and a receiver. The results indicate that, at 2.09 mW and a frequency of 24.47 kHz, the antenna has the potential to achieve a 2.44 pT magnetic flux density at a 3 m distance. A custom modulation–demodulation circuit is employed, applying 2ASK and 2PSK to validate communication capability at baseband signals of 10 Hz and 100 Hz. This approach offers a practical strategy for the lightweight and compact design of VLF communication systems.

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“…Furthermore, for multilayer thin sheet composite heterojunctions, optimizing the interlayer bonding can effectively enhance the magnetoelectric coupling coefficient [32], and the application of a DC bias magnetic field can improve the energy conversion efficiency between magnetostrictive and piezoelectric materials [33]. Taking it a step further, Niu et al utilized small permanent magnets instead of Helmholtz coils to provide a DC bias magnetic field for ME antennas, resulting in improved energy conversion efficiency while maintaining a compact size [34,35].…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Low-Frequency Communication System Based on the Magnetoelectric Effect

Zi,

Ma,

Wang

et al. 2023

Micromachines

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Recently, the realization of electromagnetic wave signal transmission and reception has been achieved through the utilization of the magnetoelectric effect, enabling the development of compact and portable low-frequency communication systems. In this paper, we present a miniaturized low-frequency communication system including a transmitter device and a receiver device, which operates at a frequency of 44.75 kHz, and the bandwidth is 1.1 kHz. The transmitter device employs a Terfenol-D (80 mm × 10 mm × 0.2 mm)/PZT (30 mm × 10 mm × 0.2 mm)/Terfenol-D glued composite heterojunction magnetoelectric antenna and the strongest radiation in the length direction, while the receiver device utilizes a manually crafted coil maximum size of 82 mm, yielding a minimum induced electromagnetic field of 1 pT at 44.75 kHz. With an input voltage of 150 V, the system effectively communicates over a distance of 16 m in air and achieves reception of electromagnetic wave signals within 1 m in simulated seawater with a salinity level of 35% at 25 °C. The miniaturized low-frequency communication system possesses wireless transmission capabilities, a compact size, and a rapid response, rendering it suitable for applications in mining communication, underwater communication, underwater wireless energy transmission, and underwater wireless sensor networks.

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Transceiving Signals by Mechanical Resonance: A Miniaturized Standalone Low Frequency (LF) Magnetoelectric Mechanical Antenna Pair With Integrated DC Magnetic Bias

Cited by 30 publications

References 57 publications

Magneto-acoustic coupling: Physics, materials, and devices

Magneto-acoustic coupling: Physics, materials, and devices

Self-Biased Magneto-Electric Antenna for Very-Low-Frequency Communications: Exploiting Magnetization Grading and Asymmetric Structure-Induced Resonance

Miniaturized Low-Frequency Communication System Based on the Magnetoelectric Effect

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