Ultra-wideband electrostrictive mechanical antenna

作     者：Xu, Jianchun Li, Zhao Pan, Xuchao Wen, Xi Cao, Jinqing Gong, Wen Yang, Shaolong Lei, Ming Yao, Fangzhou Bi, Ke 

作者机构：State Key Laboratory of Information Photonics and Optical Communications School of Electronic Engineering School of Science Beijing University of Posts and Telecommunications Beijing100876 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing100084 China School of Mechanical Engineering Nanjing University of Science and Technology Nanjing210094 China Research Center of Advanced Functional Ceramic Materials Wuzhen Laboratory Jiaxing314500 China Center of Advanced Ceramic Materials and Devices Yangtze Delta Region Institute Tsinghua University Zhejiang314006 China 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2021年

核心收录：

主　　题：Antennas 

摘      要：Conventional mechanical antennas provide a strategy in long-wave communication with a surprisingly compact size below 1/1,000 of the wavelength. However, the narrow bandwidth and weak field intensity seriously hamper its practical applications. Here, we present a mechanical antenna based on the electrostrictive effect of PMN-PT-based relaxor ferroelectric ceramic to improve radiation capacity and achieve ultra-wideband characteristics (10 kHz - 1 MHz, the relative bandwidth is beyond 196%). Determined by the different underlying mechanism, the mechanical antenna based on the electrostrictive effect exhibits excellent communication properties from traditional mechanical antennas. The functions of signal coding, transmitting, receiving, and decoding were experimentally demonstrated. This approach offers a promising way of constructing mechanical antennas for long-wave communication. Copyright © 2021, The Authors. All rights reserved.