Miniaturized antennas for link between binaural hearing aids
Författare
Summary, in English
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.
Publiceringsår
2010
Språk
Engelska
Sidor
688-691
Publikation/Tidskrift/Serie
Annual International Conference of the IEEE Engineering in Medicine and Biology Society.
Volym
1
Fulltext
- Available as PDF - 372 kB
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Dokumenttyp
Konferensbidrag
Förlag
IEEE - Institute of Electrical and Electronics Engineers Inc.
Ämne
- 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
Projekt
- EIT_UPD Wireless Communication for Ultra Portable Devices
Forskningsgrupp
- Radio Systems
ISBN/ISSN/Övrigt
- ISSN: 1557-170X