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Miniaturized antennas for link between binaural hearing aids

Författare:
Publiceringsår: 2010
Språk: Engelska
Sidor: 688-691
Publikation/Tidskrift/Serie: Annual International Conference of the IEEE Engineering in Medicine and Biology Society.
Volym: 1
Dokumenttyp: Konferensbidrag
Förlag: IEEE

Sammanfattning

We have investigated the possibility of using the
2.45 GHz ISM band for communication between binaural
hearing aids. The small size of a modern hearing aid makes it
necessary to miniaturize the antennas to make this feasible.
Two different types of hearing aid placements have been
investigated: in the outer ear and in the ear canal. Both put
strict demands on the size of the antenna, which have been
miniaturized by applying disc loads and high permittivity materials.
The investigations have been done by FDTD simulation
of a modified SAM phantom head, where we have included a
simple model of the ear canal. Simulations show that the outer
ear placement is better, as it gives a total link loss of 48 dB.
The placement in the ear canal gives a total link loss of 92 dB.

Disputation

Nyckelord

  • Technology and Engineering

Övriga

32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2010
2010-08-31/2010-09-04
Buenos Aires, Argentina
Published
  • EIT_UPD Wireless Communication for Ultra Portable Devices
Yes
  • Radio Systems
  • ISSN: 1557-170X

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