A Multilayered Magnetoelectric Transmitter with Suppressed Nonlinearity for Portable VLF Communication.

ABSTRACT: Acoustically actuated magnetoelectric (ME) antenna based on the efficient oscillation of magnetic dipoles has recently been considered as a promising solution for portable very-low-frequency communications. However, the severe nonlinear dynamic behavior in the case of strong-field excitation results in insufficient radiation capability and poor communication performance for a conventional ME antenna. In this work, we propose to suppress the nonlinearity of an ME antenna by neutralizing the spring-hardening effect in amorphous Metglas and the spring-softening effect in piezoelectric ceramics through an ME multilayered transmitter (ME-MLTx) design. With a driving voltage of 50 V_pp at the resonance frequency of 21.2 kHz, a magnetic flux density as high as 108 fT at a distance of 10

SUBMITTER: Chu Z 

PROVIDER: S-EPMC10503940 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature