Acoustically actuated ultra-compact NEMS magnetoelectric antennas

被引：355

作者：

Nan, Tianxiang ^{[1
,2
]}

Lin, Hwaider ^{[1
,2
]}

Gao, Yuan ^{[1
,2
]}

Matyushov, Alexei ^{[1
,2
]}

Yu, Guoliang ^{[1
,2
]}

Chen, Huaihao ^{[1
,2
]}

Sun, Neville ^{[1
,2
]}

Wei, Shengjun ^{[1
,2
]}

Wang, Zhiguang ^{[1
,2
]}

Li, Menghui ^{[1
,2
]}

Wang, Xinjun ^{[1
,2
]}

Belkessam, Amine ^{[1
,2
]}

Guo, Rongdi ^{[1
,2
]}

Chen, Brian ^{[1
,2
,3
]}

Zhou, James ^{[1
,2
,4
]}

Qian, Zhenyun ^{[1
,2
]}

Hui, Yu ^{[1
,2
]}

Rinaldi, Matteo ^{[1
,2
]}

McConney, Michael E. ^{[5
]}

Howe, Brandon M. ^{[5
]}

Hu, Zhongqiang ^{[5
]}

Jones, John G. ^{[5
]}

Brown, Gail J. ^{[5
]}

Sun, Nian Xiang ^{[1
,2
]}

机构：

[1] Northeastern Univ, WM Keck Lab Integrated Ferro, Boston, MA 02115 USA

[2] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA

[3] Westford Acad, Westford, MA 01886 USA

[4] Andover High Sch, Andover, MA 01810 USA

[5] Air Force Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

来源：

NATURE COMMUNICATIONS | 2017年 / 8卷

基金：

美国国家科学基金会;

关键词：

MINIATURIZATION; COMPOSITES; FILMS; HETEROSTRUCTURES; LIMITATIONS; RESONATORS; DESIGN;

D O I：

10.1038/s41467-017-00343-8

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

State-of-the-art compact antennas rely on electromagnetic wave resonance, which leads to antenna sizes that are comparable to the electromagnetic wavelength. As a result, antennas typically have a size greater than one-tenth of the wavelength, and further miniaturization of antennas has been an open challenge for decades. Here we report on acoustically actuated nanomechanical magnetoelectric (ME) antennas with a suspended ferromagnetic/ piezoelectric thin-film heterostructure. These ME antennas receive and transmit electromagnetic waves through the ME effect at their acoustic resonance frequencies. The bulk acoustic waves in ME antennas stimulate magnetization oscillations of the ferromagnetic thin film, which results in the radiation of electromagnetic waves. Vice versa, these antennas sense the magnetic fields of electromagnetic waves, giving a piezoelectric voltage output. The ME antennas (with sizes as small as one-thousandth of a wavelength) demonstrates 1-2 orders of magnitude miniaturization over state-of-the-art compact antennas without performance degradation. These ME antennas have potential implications for portable wireless communication systems.

引用

页数：8

共 46 条

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