Miniaturized antennas for link between binaural hearing aids
Author
Summary, in English
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.
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.
Publishing year
2010
Language
English
Pages
688-691
Publication/Series
Annual International Conference of the IEEE Engineering in Medicine and Biology Society.
Volume
1
Full text
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Document type
Conference paper
Publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
Conference name
Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2010
Conference date
2010-08-31 - 2010-09-04
Conference place
Buenos Aires, Argentina
Status
Published
Project
- EIT_UPD Wireless Communication for Ultra Portable Devices
Research group
- Radio Systems
ISBN/ISSN/Other
- ISSN: 1557-170X