Application Cases

Experiment Name: Study on Magnet-Mechanical-Electrical Coupling Very Low Frequency Mechanical Antenna

Experiment Content: This experiment aims to explore a novel design for a very low frequency antenna that achieves efficient electromagnetic wave radiation through magneto-mechanical-electrical coupling effects. In the experiment, piezoelectric materials are used to excite magnetostrictive materials to produce deformation. Combined with the oscillation of permanent magnets, electromagnetic waves are radiated outward. This design overcomes the limitations of traditional current element antennas in terms of the relationship between the wavelength of emitted electromagnetic waves and antenna size, providing new scientific foundations for the design and fabrication of miniaturized very low frequency antennas.

Research Direction: Design of Magneto-Electric Very Low Frequency Mechanical Antennas

Test Equipment: Signal generator, ATA-3090 power amplifier, magneto-mechanical-electrical mechanical antenna, receiving coil, dynamic signal analyzer, oscilloscope, etc.

Experimental Procedure: A signal generator is used to produce simulated audio signals, which are amplified by the ATA-3090 power amplifier and then input into the magneto-mechanical-electrical coupling antenna. The antenna converts the amplified signal into an electromagnetic wave signal and radiates it. At the receiving end, a receiving coil captures the electromagnetic wave signal, which is then amplified again by the ATA-3090 power amplifier and finally input into an oscilloscope. Through the oscilloscope, the essentially restored simulated audio signal can be observed. Additionally, if the amplified received signal is directly input into a speaker, the original audio can be played.

Experimental Results: The voltage analog signals converted from the simulated audio signal "This is a magneto-electric antenna" were amplified and input into the magneto-mechanical-electrical coupling antenna and a loop antenna, respectively. The simulated signals received from the magneto-mechanical-electrical coupling antenna exhibited lower background noise, higher fidelity, and greater similarity to the original voice voltage analog signals compared to those from the loop antenna. Moreover, the received signals, after amplification, could be directly input into a speaker to produce clear playback of the original voice.

This experiment demonstrates the superiority of this antenna design in signal transmission and reconstruction. This novel antenna not only overcomes the size limitations of traditional antennas but also improves signal transmission quality and fidelity, providing important references for the design and application of future miniaturized very low frequency antennas.

Power Amplifier Recommendation: ATA-3090C Power Amplifier

Figure: ATA-3090C Power Amplifier Specifications

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