Passive backscatter biotelemetry for neural interfacing

Bruce C. Towe

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

12 Scopus citations

Abstract

Wireless telemetry of low level biopotentials from bioelectrodes can be accomplished over decimeter-order distances by using the biopotential to directly modulate the characteristics of a simple passive resonant circuit consisting of two varactor diodes and an inductor. Backscattered radio frequency energy at or near the circuit resonance in the 300 MHz region is amplitude modulated by the biopotential and detected by a remote receiver. The varactor circuit exhibits a high input impedance suited to bioelectrodes and a sensitivity to submillivolt levels. The circuit is miniaturizable to several cubic millimeters and can be realized with conventional commercially available surface mount components.

Original languageEnglish (US)
Title of host publicationProceedings of the 3rd International IEEE EMBS Conference on Neural Engineering
Pages144-147
Number of pages4
DOIs
StatePublished - Sep 25 2007
Event3rd International IEEE EMBS Conference on Neural Engineering - Kohala Coast, HI, United States
Duration: May 2 2007May 5 2007

Publication series

NameProceedings of the 3rd International IEEE EMBS Conference on Neural Engineering

Other

Other3rd International IEEE EMBS Conference on Neural Engineering
CountryUnited States
CityKohala Coast, HI
Period5/2/075/5/07

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Neuroscience (miscellaneous)

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