JOURNAL ARTICLE

A Lamb wave magnetoelectric antenna design for implantable devices.

  • Published In: Applied Physics Letters, 2023, v. 122, n. 20. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Zheng, Ruoda; Estrada, Victor; Virushabadoss, Nishanth; Will-Cole, Alexandria; Acosta, Adrian; Hu, Jinzhao; Yan, Wenzhong; Chang, Jane P.; Sun, Nian X.; Henderson, Rashaunda; Carman, Gregory P.; Sepulveda, Abdon E. 3 of 3

Abstract

This article focuses on the design and experimental validation of a 400 MHz magnetoelectric (ME) Lamb wave antenna intended for use in the medical implant communication service (MICS) band (402–405 MHz). The antenna employs a heterostructure of piezoelectric and magnetostrictive membranes to acoustically excite standing shear bulk Lamb waves and radiate as a magnetic dipole, enabling significant miniaturization compared to conventional implantable antennas. Finite element method simulations analyze piezoelectricity, micromagnetic precession, and magnetic dipole radiation in both transmission and reception modes, while experimental results demonstrate mechanical resonance with a quality factor of 500 and tunable magnetoelectric coupling. The study highlights the antenna’s potential for compact implantable device communication, with array configurations suggested to enhance radiated power and maintain signal detectability within safe distances.

Additional Information

  • Source:Applied Physics Letters. 2023/05, Vol. 122, Issue 20, p1
  • Document Type:Article
  • Subject Area:History
  • Publication Date:2023
  • ISSN:0003-6951
  • DOI:10.1063/5.0151937
  • Accession Number:163823140
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