Ultra-Wideband Transceivers for Cochlear Implants

: Ultra-wideband (UWB) radio offers low power consumption, low power spectral density, high immunity against interference, and other benefits, not only for consumer electronics, but also for medical devices. A cochlear implant (CI) is an electronic hearing apparatus, requiring a wireless link throug...

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Bibliographic Details
Published in:EURASIP journal on advances in signal processing 2005-11, Vol.2005 (18), p.647310-647310
Main Authors: Buchegger, Thomas, Oßberger, Gerald, Reisenzahn, Alexander, Hochmair, Erwin, Stelzer, Andreas, Springer, Andreas
Format: Article
Language:English
Subjects:
back tunnel diode
broadband antenna
cochlear implant
detector receiver
step recovery diode
ultra-wideband
Online Access:Get full text
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Summary:: Ultra-wideband (UWB) radio offers low power consumption, low power spectral density, high immunity against interference, and other benefits, not only for consumer electronics, but also for medical devices. A cochlear implant (CI) is an electronic hearing apparatus, requiring a wireless link through human tissue. In this paper we propose an UWB link for a data rate of Mbps and a propagation distance up to 500 mm. Transmitters with step recovery diode and transistor pulse generators are proposed. Two types of antennas and their filter characteristics in the UWB spectrum will be discussed. An ultra-low-power back tunnel diode receiver prototype is described and compared with conventional detector receivers.
ISSN:1687-6180
1687-6172
1687-6180
DOI:10.1186/1687-6180-2005-647310