Modeling of electromagnetic radiation-induced from a magnetostrictive/piezoelectric laminated composite

Magnetoelectric (ME) materials can realize the conversions between electric and magnetic energy. Different from the previous studies, the electromagnetic (EM) radiation of ME materials has been adequately considered in this work. The electrical energy input can be converted into the dynamic magnetization oscillation by converse magnetoelectric (CME) effect. The antennas operate at their acoustic resonance frequency, which provides a new idea for antenna miniaturization. We analyze the CME effect and EM radiation from a vibrating ME laminated composite. The results show that the ME heterostructure resembles an ideal magnetic dipole in terms of radiating EM waves. This structure reduces the antenna size by several orders of magnitude, suggesting vast superiority of controlling magnetizations to generate EM radiation at a micro-scale. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

Magnetoelectric materials can convert electric and magnetic energy, and this study focuses on the electromagnetic radiation and converse magnetoelectric effect of ME materials. It is found that ME heterostructures can significantly reduce antenna size, offering a new approach for generating EM radiation at a micro-scale.