A fully passive wireless backscattering neurorecording microsystem embedded in dispersive human-head phantom medium

Helen N. Schwerdt; Félix A. Miranda; Junseok Chae

doi:10.1109/LED.2012.2190967

A fully passive wireless backscattering neurorecording microsystem embedded in dispersive human-head phantom medium

Helen N. Schwerdt, Félix A. Miranda, Junseok Chae

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

This letter reports a microfabricated fully passive circuit for extracting and transmitting targeted neuropotentials wirelessly via the backscattering effect without any internal power source or harvester. Radiating electromagnetic waves experience attenuation, phase and wavelength alteration, and random scattering effects when propagating through dispersive biological media (i.e., human head), and these effects are augmented at microwave frequencies required for practical miniaturization of the integrated microsystem antenna. The authors examine the fully passive microsystem for wireless recording of emulated neuropotentials as implanted in a phantom mimicking the human head. The wireless measurements of emulated neuropotentials acquired by the microsystem demonstrate its promising capabilities for neurological applications.

Original language	English (US)
Article number	6190712
Pages (from-to)	908-910
Number of pages	3
Journal	IEEE Electron Device Letters
Volume	33
Issue number	6
DOIs	https://doi.org/10.1109/LED.2012.2190967
State	Published - 2012

Keywords

Biological microelectromechanical systems (bio-MEMS)
electromagnetic (EM) backscattering
neural recording

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/LED.2012.2190967

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title = "A fully passive wireless backscattering neurorecording microsystem embedded in dispersive human-head phantom medium",

abstract = "This letter reports a microfabricated fully passive circuit for extracting and transmitting targeted neuropotentials wirelessly via the backscattering effect without any internal power source or harvester. Radiating electromagnetic waves experience attenuation, phase and wavelength alteration, and random scattering effects when propagating through dispersive biological media (i.e., human head), and these effects are augmented at microwave frequencies required for practical miniaturization of the integrated microsystem antenna. The authors examine the fully passive microsystem for wireless recording of emulated neuropotentials as implanted in a phantom mimicking the human head. The wireless measurements of emulated neuropotentials acquired by the microsystem demonstrate its promising capabilities for neurological applications.",

keywords = "Biological microelectromechanical systems (bio-MEMS), electromagnetic (EM) backscattering, neural recording",

author = "Schwerdt, {Helen N.} and Miranda, {F{\'e}lix A.} and Junseok Chae",

note = "Funding Information: Manuscript received October 27, 2011; revised March 8, 2012; accepted March 11, 2012. Date of publication April 26, 2012; date of current version May 18, 2012. This work was supported in part by the U.S. National Science Foundation under Grant ECCS-0702227, by the National Institutes of Health under Grant 5R21NS059815-02, and by the NASA Graduate Student Research Program fellowship under Grant NNX09AK93H. The review of this letter was arranged by Editor W. T. Ng.",

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doi = "10.1109/LED.2012.2190967",

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AU - Miranda, Félix A.

AU - Chae, Junseok

N1 - Funding Information: Manuscript received October 27, 2011; revised March 8, 2012; accepted March 11, 2012. Date of publication April 26, 2012; date of current version May 18, 2012. This work was supported in part by the U.S. National Science Foundation under Grant ECCS-0702227, by the National Institutes of Health under Grant 5R21NS059815-02, and by the NASA Graduate Student Research Program fellowship under Grant NNX09AK93H. The review of this letter was arranged by Editor W. T. Ng.

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AB - This letter reports a microfabricated fully passive circuit for extracting and transmitting targeted neuropotentials wirelessly via the backscattering effect without any internal power source or harvester. Radiating electromagnetic waves experience attenuation, phase and wavelength alteration, and random scattering effects when propagating through dispersive biological media (i.e., human head), and these effects are augmented at microwave frequencies required for practical miniaturization of the integrated microsystem antenna. The authors examine the fully passive microsystem for wireless recording of emulated neuropotentials as implanted in a phantom mimicking the human head. The wireless measurements of emulated neuropotentials acquired by the microsystem demonstrate its promising capabilities for neurological applications.

KW - Biological microelectromechanical systems (bio-MEMS)

KW - electromagnetic (EM) backscattering

KW - neural recording

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A fully passive wireless backscattering neurorecording microsystem embedded in dispersive human-head phantom medium

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Keywords

ASJC Scopus subject areas

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