A Lamb wave magnetoelectric antenna design for implantable devices-Reference-Cited by-同舟云学术

A Lamb wave magnetoelectric antenna design for implantable devices

Published:2023-05-15 Issue:20 Volume:122 Page:
ISSN:0003-6951
Container-title:Applied Physics Letters
language:en
Short-container-title:

Author:

Zheng Ruoda¹^ORCID,Estrada Victor¹^ORCID,Virushabadoss Nishanth²,Will-Cole Alexandria³^ORCID,Acosta Adrian⁴^ORCID,Hu Jinzhao¹^ORCID,Yan Wenzhong¹^ORCID,Chang Jane P.⁴^ORCID,Sun Nian X.³,Henderson Rashaunda²^ORCID,Carman Gregory P.¹^ORCID,Sepulveda Abdon E.¹^ORCID

Affiliation:

1. Department of Mechanical and Aerospace Engineering, University of California 1 , Los Angeles, California 90095, USA

2. Department of Electrical and Computer Engineering, University of Texas at Dallas 2 , Richardson, Texas 75080, USA

3. Department of Electrical and Computer Engineering, Northeastern University 3 , Boston, Massachusetts 02115, USA

4. Department of Chemical and Biomolecular Engineering, University of California 4 , Los Angeles, California 90095, USA

Abstract

A 400 MHz magnetoelectric (ME) Lamb wave antenna design to function in the medical implant communication service band is proposed. The antenna employs a heterostructure of piezoelectric and magnetostrictive membranes to acoustically excite standing shear bulk wave and radiate as a magnetic dipole. Multiphysics finite element analysis simulations are performed for transmission and reception modes. In these simulations, three aspects are investigated: piezoelectricity, micromagnetic precession, and magnetic dipole radiation. An experimental demonstration of the antenna is also conducted and shows mechanical resonance with a Q-factor of 500 and ME coupling. These results indicate that the design can be operated in zero-order antisymmetric (A0) mode as a tunable oscillator or sensor. This ME approach provides a solution to the miniaturization problem of traditional current-based implantable antennas.

Funder

National Science Foundation

Publisher

AIP Publishing

Subject

Physics and Astronomy (miscellaneous)

Link

https://pubs.aip.org/aip/apl/article-pdf/doi/10.1063/5.0151937/17496076/202901_1_5.0151937.pdf

Reference38 articles.

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