دورية أكاديمية
Improved Performance of Acoustically Actuated Magnetoelectric Antenna with FeGa/FeGaB Bilayer
| العنوان: | Improved Performance of Acoustically Actuated Magnetoelectric Antenna with FeGa/FeGaB Bilayer |
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| المؤلفون: | Kunqi Li, Qiaozhen Zhang, Yang Chang, Jian Wang, Huiling Liu, Songsong Zhang, Yuandong Gu |
| المصدر: | Micromachines, Vol 15, Iss 2, p 190 (2024) |
| بيانات النشر: | MDPI AG, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Mechanical engineering and machinery |
| مصطلحات موضوعية: | acoustic wave, finite element method, magnetoelectric antenna, magnetoelectric coefficient, multiphysics coupling, Mechanical engineering and machinery, TJ1-1570 |
| الوصف: | Acoustically actuated magnetoelectric (ME) antennas utilize acoustic wave resonance to complete the process of receiving and transmitting signals, which promotes the development of antenna miniaturization technology. This paper presents a bilayer magnetostrictive/AlN ME laminated antenna. The proposed laminated antenna uses the FeGa/FeGaB bilayer materials as magnetostrictive materials, which combine the advantages of soft magnetic properties of FeGa and the low loss of FeGaB. First, multiphysics modeling and analysis are performed for the proposed ME laminated antenna by finite element method (FEM). The positive/inverse ME effects and the influences of the volume ratio of the FeGa/FeGaB bilayer on the antenna performance are studied. The results show that the output voltage and ME coefficient of the FeGa/FeGaB bilayer magnetostrictive material with a volume ratio of 1:1 are 3.97 times and 195.8% higher than that of the single FeGaB layer, respectively. The eddy current loss is 52.08% lower than that of single-layer FeGa. According to the surface equivalence principle, the far-field radiation process is simulated. The results show that the gain of the ME antenna is 15 dB larger than that of the same-size micro-loop antenna, and the gain of the ME antenna is about −44.9 dB. The improved performance and magnetic tunability of the proposed bilayer magnetostrictive materials make ME antennas excellent candidates for portable devices and implantable medical devices. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2072-666X 58674276 |
| Relation: | https://www.mdpi.com/2072-666X/15/2/190; https://doaj.org/toc/2072-666X |
| DOI: | 10.3390/mi15020190 |
| URL الوصول: | https://doaj.org/article/94a6e80551b744d98e5867427620cfef |
| رقم الأكسشن: | edsdoj.94a6e80551b744d98e5867427620cfef |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 2072666X 58674276 |
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| DOI: | 10.3390/mi15020190 |