Computer Simulation of Magnetoelectric Antenna and Performance Comparison With Micro-Loop

Electromagnetic radiation can be produced using functional materials such as magnetoelectric (ME) composites, in which the magnetoelasticity and piezoelasticity of material are involved. The mechanical nature vibrations is used to miniaturize ME antenna micro-scale size. performance evaluation requires a multiphysics analysis structure. An design simulation detailed finite element method (FEM) COMSOL Multiphysics® structural mechanics, electrostatics, magnetic field physics coupled together address needs. size 250 μm × 50 1 simulated within static bias 20 mT. nonlinear isotropic model for magnetostrictive definition prestress defined by bias. linearized radio frequency (RF) simulations account AC simulation. farfield pattern gain computed difference time domain (FDTD) incorporating extracted nearfield COMSOL. impedance, compared an equivalent micro-loop antenna. In addition, electromagnetic computations evaluate coupling between larger loop over distance up mm free space biomedical tissues potential medical implants wireless communication power transfer.