2021/12/30 by Jianchun Xu, Xu, Jianchun, Zhao Li +19
Engineering · Physics and Astronomy · #Antenna Design and Analysis #Applied Physics (physics.app-ph) #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Microwave Engineering and Waveguides #Millimeter-Wave Propagation and Modeling #physics.app-ph #physics.ins-det
paper · pdf · doi:10.48550/arxiv.2112.14969
28 pages, 10 figures,
arxiv created 2021/12/30 · openalex publication_date 2021/12/30 · arxiv updated 2022/01/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.