Eigenmode optimization and topologically protected states in magneto-mechanical ULF transmitter arrays

Inbar Grinberg, Jun Hwan Kim, Gaurav Bahl

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Electromagnetic signals in the Ultra-Low Frequency (ULF) range 0.3-3 kHz are important for underground and underwater wireless communication systems, due to relatively low absorption through water, rock, and soil. However, the extremely large wavelength (~106 m) causes man-portable ULF antennas to be inefficient to the point of impracticality. In this work, we present a new ULF transmitter approach through direct production of oscillating magnetic fields by an array of magneto-mechanical torsional resonators. We demonstrate transmitter power optimization through eigenmode engineering, and discuss the formation of topologically protected states. Our work illuminates a path to MEMS-based ULF transmitters capable of communicating through water and earth over km distances.

Original languageEnglish (US)
Title of host publication2018 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2018
EditorsTina Lamers, Mina Rais-Zadeh
PublisherTransducer Research Foundation
Pages354-357
Number of pages4
ISBN (Electronic)9781940470030
DOIs
StatePublished - Jan 1 2018
Event2018 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2018 - Hilton Head, United States
Duration: Jun 3 2018Jun 7 2018

Publication series

Name2018 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2018

Conference

Conference2018 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2018
CountryUnited States
CityHilton Head
Period6/3/186/7/18

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Hardware and Architecture

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