The Effect of Transverse Waves on Magnetoelectric Antenna Radiation Performance

Abstract

Antenna is a critical component in the miniaturization of wireless communication equipment. Magnetoelectric (ME) antennas have gotten a lot of attention because they are 4–5 orders of magnitude smaller than electrically small antennas. Transverse wave is an important excitation method of magneto electric effect, but its influence on the radiation of ME antenna has not been fully studied. This paper use Finite Difference Time Domain (FDTD) to develop a two-dimensional anisotropic model of ME antenna to study the transverse effect on radiation performance. After verifying the model, the transverse wave is adjusted by changing the electrode arrangement and the excitation magnetic field is calculated to study the transverse wave influence on the radiation performance. These results indicate that matching the electrode width to 1/2 the wavelength of the transverse wave can improve radiation performance by two orders of magnitude. This study develops a new simulation model and design concept for ME antennas, thereby promoting their application in the Internet of Things (IoT) and embedded sensors, and other fields.