TY - JOUR
T1 - A very low frequency (VLF) antenna based on clamped bending-mode structure magnetoelectric laminates
AU - Hu, Lizhi
AU - Zhang, Qianshi
AU - Wu, Hanzhou
AU - You, Haoran
AU - Jiao, Jie
AU - Luo, Haosu
AU - Wang, Yaojin
AU - Duan, Chungang
AU - Gao, Anran
N1 - Publisher Copyright:
© 2022 IOP Publishing Ltd.
PY - 2022/10/12
Y1 - 2022/10/12
N2 - As the development of wireless communication devices tends to be highly integrated, the miniaturization of very low frequency (VLF) antenna units has always been an unresolved issue. Here, a novel VLF mechanical communication antenna using magnetoelectric (ME) laminates with bending-mode structure is realized. ME laminates combines magnetostrictive Metglas amorphous ribbons and piezoelectric 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 single crystal plates. From the simulation, we confirmed that the ME laminates can reduce the resonance peak from 18 kHz to 7.5 kHz by bending-mode structure. Experiment results show the resonance frequency can be farther reduced to 6.3 kHz by clamping one end of the ME antenna. The ME laminate exhibits a giant converse ME coefficient of 6 Oe cm V−1 at 6.3 kHz. The magnetic flux density generated by the ME antenna has been tested along with distance ranging from 0 to 60 cm and it is estimated that a 1 fT flux could be detected around 100 m with an excitation power of 10 mW.
AB - As the development of wireless communication devices tends to be highly integrated, the miniaturization of very low frequency (VLF) antenna units has always been an unresolved issue. Here, a novel VLF mechanical communication antenna using magnetoelectric (ME) laminates with bending-mode structure is realized. ME laminates combines magnetostrictive Metglas amorphous ribbons and piezoelectric 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 single crystal plates. From the simulation, we confirmed that the ME laminates can reduce the resonance peak from 18 kHz to 7.5 kHz by bending-mode structure. Experiment results show the resonance frequency can be farther reduced to 6.3 kHz by clamping one end of the ME antenna. The ME laminate exhibits a giant converse ME coefficient of 6 Oe cm V−1 at 6.3 kHz. The magnetic flux density generated by the ME antenna has been tested along with distance ranging from 0 to 60 cm and it is estimated that a 1 fT flux could be detected around 100 m with an excitation power of 10 mW.
KW - bending-mode structure
KW - electromechanical resonance frequency
KW - magnetoelectric antenna
KW - magnetoelectric effect
UR - https://www.scopus.com/pages/publications/85135597552
U2 - 10.1088/1361-648X/ac8403
DO - 10.1088/1361-648X/ac8403
M3 - 文章
C2 - 35878598
AN - SCOPUS:85135597552
SN - 0953-8984
VL - 34
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 41
M1 - 414002
ER -