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  • Research Article
  • Open Access

Ultra-Wideband Transceivers for Cochlear Implants

  • 1Email author,
  • 1,
  • 2,
  • 2,
  • 3 and
  • 3
EURASIP Journal on Advances in Signal Processing20052005:647310

Received: 29 April 2004

Published: 10 November 2005


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.

Keywords and phrases

  • broadband antenna
  • cochlear implant
  • detector receiver
  • step recovery diode
  • back tunnel diode
  • ultra-wideband

Authors’ Affiliations

Linz Center of Competence in Mechatronics, Linz, Austria
Institute for Microelectronic, Johannes Kepler University of Linz, Linz, Austria
Institute for Communications and Information Engineering, Johannes Kepler University of Linz, Linz, Austria


© Thomas Buchegger et al. 2005

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.