Radiation enhancement in shear horizontal surface acoustic wave driven magnetoelectric antenna
Abstract
Magnetoelectric (ME) antennas driven by shear horizontal surface acoustic waves (SH-SAWs) exhibit significant potential for miniaturized high-frequency systems owing to their structural simplicity and acoustic–magnetic coupling characteristics. In this work, we demonstrate an SH-SAW driven ME antenna based on a 42° YX-LiTaO3/FeGa heterostructure, achieving a reference gain of −18.4 dBi and radiation efficiency of 0.52%. Through bias magnetic field modulation, we experimentally observe enhanced coupling between shear horizontal mode and magnetization of FeGa film. These findings provide a method for optimizing radiation efficiency in acoustically driven ME antennas, for the design and performance improvement of ME antennas.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (9)
Rui Hu
Wenkui Lin
School of Nano Technology and Nano Bionics, University of Science and Technology of China 1 , Hefei, Anhui 230026,
Yifan Fu
Shuhui Liu
Like Zhang
School of Integrated Circuit Science and Engineering, Wuxi University 1 , Wuxi, Jiangsu 214105,
Baoshun Zhang
Xiangwei Zhu
School of Electronics and Communication Engineering, Sun Yat-sen University 2 , Shenzhen 518107,
Bin Fang
Proteomics and Metabolomics Core, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
Zhongming Zeng
School of Nano-Tech and Nano-Bionics, University of Science and Technology of China 1 , Hefei 230026,