| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Design of a low-frequency miniaturized piezoelectric antenna based on acoustically actuated principle |
| Yong Zhang(张勇)1, Zhong-Ming Yan(严仲明)1, Tian-Hao Han(韩天浩)1, Shuang-Shuang Zhu(朱双双)1, Yu Wang(王豫)1,2, and Hong-Cheng Zhou(周洪澄)1,† |
1 School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610000, China;
2 Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle, Ministry of Education, Chengdu 610000, China |
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Abstract An acoustically actuated piezoelectric antenna is proposed for low frequency (LF) band in this paper. The proposed antenna is theoretically calculated, numerically optimized by the finite element method (FEM), and experimentally analyzed. The measurement results show that the near-field radiation pattern of the piezoelectric antenna is similar to that of the electric dipole antenna. The radiation efficiency of the piezoelectric antenna is 3－4 orders of magnitude higher than that of electrically small antenna (ESA), with their sizes being the same size, and the maximum transmission distance obtained experimentally is 100 cm, which can be improved by increasing the input power. In addition, the gain, directivity, and quality factor of piezoelectric antenna are also analyzed. In this paper, traditional antenna parameters are creatively used to analyze the performance of piezoelectric antenna. The research conclusions can provide reliable theoretical basis for realizing LF antenna miniaturization.
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Received: 04 January 2022
Revised: 17 February 2022
Accepted manuscript online: 06 April 2022
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PACS:
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77.65.Dq
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(Acoustoelectric effects and surface acoustic waves (SAW) in piezoelectrics)
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77.65.-j
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(Piezoelectricity and electromechanical effects)
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84.40.Ba
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(Antennas: theory, components and accessories)
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92.60.Ta
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(Electromagnetic wave propagation)
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Corresponding Authors:
Hong-Cheng Zhou
E-mail: zhouhc@home.swjtu.edu.cn
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Cite this article:
Yong Zhang(张勇), Zhong-Ming Yan(严仲明), Tian-Hao Han(韩天浩), Shuang-Shuang Zhu(朱双双), Yu Wang(王豫), and Hong-Cheng Zhou(周洪澄) Design of a low-frequency miniaturized piezoelectric antenna based on acoustically actuated principle 2022 Chin. Phys. B 31 077702
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