A High-Gain Ultra-Compact ME Antenna Design for Portable RF Wireless Communication

Acoustically actuated mechanical ME antennas based on MEMS technology have been demonstrated to be one of the most effective technologies to miniaturize antennas. In this work, a new high-gain ultra-compact magnetoelectric antenna design based on FBAR for Portable RF wireless communication is introduced. This ME antenna is driven by acoustic waves and its fabrication is mainly based on the MEMS standard process. Due to the strong magnetoelectric coupling effect of magnetoelectric composites and the acoustic wavelength being much shorter than the EM wavelength at the same frequency, a high antenna gain of -15.77 dBi is achieved at the frequency of 2446 MHz. The effective electromechanical coupling coefficient and phase quality factor of the fabricated device are calculated as 1.3% and 172, respectively. This high-gain ultra-compact ME antenna takes a step forward for FBAR-based ME antenna research.