Design of a low-frequency miniaturized piezoelectric antenna based on acoustically actuated principle

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.

Automated summary

This paper proposes an acoustically actuated piezoelectric antenna for the low frequency (LF) band. The antenna is theoretically calculated, numerically optimized, and experimentally analyzed. The results show that the piezoelectric antenna has a higher radiation efficiency and transmission distance compared to electrically small antennas (ESA) of the same size. Additionally, the gain, directivity, and quality factor of the antenna are also analyzed. The research conclusions provide a reliable theoretical basis for miniaturizing LF antennas.