A Portable Acoustically Actuated Antenna Based on an Asymmetrical Magnetoelectric Antenna

被引：17
作者：
Deng, Tingyu [1 ,2 ]
Jiao, Jie [1 ,2 ]
Wang, Dong [1 ,2 ]
Luo, Haosu [1 ,2 ]
Lu, Li [1 ,2 ]
Di, Wenning [1 ,2 ]
Lin, Di [1 ,2 ]
Zhu, Lili [1 ,2 ]
机构：
[1] Shanghai Inst Ceram, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2024年 / 72卷 / 01期
关键词：
Magnetostriction; Magnetic domains; Magnetic flux; Antennas; Magnetoelectric effects; Magnetoacoustic effects; Saturation magnetization; Electromagnetic (EM) radiation; electrostriction; magnetoelectric (ME) antenna; near-field radiation; super low frequency (SLF); COMMUNICATION; MODEL;
D O I：
10.1109/TAP.2023.3325044
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The magnetoelectric (ME) antenna with acousticdriven has become a new scheme for solving remote wirelesscommunication from ultralow frequency (ULF) to very lowfrequency (VLF) bands due to its small size and antiinterfer-ence solid capabilities. This article presents a model based onelectrostriction, magnetostriction, and Maxwell equations. Thecapability at the resonant frequency (f(r)) of electric field (E) andmagnetic flux density (B) radiation in space are examined throughvariations in voltage (V), magnetic field (H), and structure. Thismodel relates the V to the spatial B distribution and lays a foun-dation for the ME antenna's structural design and characteristicresearch. The actual test shows the asymmetric ME antenna hasexcellent electromagnetic (EM) radiation ability in the super lowfrequency (SLF) band. The magnetic flux intensity can reach 2.2 nT at 1 m. By constructing ME antenna arrays, radiationintensity can also be superimposed. The value of magnetic fluxdensity reaches 7.2 nT at 1 m at 110 Hz and 3.8 nT at 1 m atquasi-static frequency. This study demonstrates that asymmetricME antenna arrays can be used for narrowband communicationin the SLF and broadband long-distance communication
引用
收藏
页码：332 / 342
页数：11
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