High Radiation Performance and Multi-band Acoustically Driven Piezoelectric Antenna based on Energy Trapping Theory

Journal of Physics D Pub Date : 2023-10-23 DOI:10.1088/1361-6463/ad05f4

Yong Zhang, Cheng Hong Zhou, Zhongming Yan, Yu Wang

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Abstract

Abstract The paper introduces a novel design method for an acoustically driven piezoelectric antenna (ADPA) with high radiation performance and broadband characteristics based on energy trapping theory. The reasonableness of the design method is demonstrated by analytically deriving the radiated magnetic field, radiated efficiency and resonant frequency, which are further validated by simulation analysis. Furthermore, a prototype is fabricated and measured, and the results indicate remarkable improvements compared to the non-energy trapping mode, the bandwidth is widened by 10%, the radiation efficiency is increased by 28%, the radiation magnetic field is increased by 3 times, the transmission distance is increased by 2.75 times. The radiation enhancement and multi-band capability of the proposed antenna has been successfully demonstrated. Additionally, we have successfully implemented amplitude modulation (AM) signals transmission using proposed antenna. These results highlight the significant potential of the proposed antenna for portable, miniaturized, and high-performance wireless communication devices.

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基于能量捕获理论的高辐射多波段声驱动压电天线

摘要介绍了一种基于能量捕获理论的高辐射宽带声驱动压电天线(ADPA)的设计方法。通过解析推导辐射磁场、辐射效率和谐振频率，论证了设计方法的合理性，并通过仿真分析进一步验证了设计方法的正确性。在此基础上，制作了原型机并进行了测量，结果表明，与非能量捕获模式相比，该模式的带宽提高了10%，辐射效率提高了28%，辐射磁场增加了3倍，传输距离增加了2.75倍。该天线的辐射增强和多波段性能已被成功验证。此外，我们已经成功地实现了使用该天线的调幅(AM)信号传输。这些结果突出了该天线在便携式、小型化和高性能无线通信设备方面的巨大潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of Physics D

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