DocumentCode
3302799
Title
Improvement of hearing aid compatibility (HAC) of terminal antennas using wavetraps
Author
Lindberg, P. ; Kaikkonen, A. ; Südow, M.
Author_Institution
Laird Technol., Kista
fYear
2009
fDate
2-4 March 2009
Firstpage
1
Lastpage
4
Abstract
A technique for reducing the antenna induced electromagnetic fields in the vicinity of the earpiece speaker in mobile phones is presented, thereby improving the hearing aid compatibility (HAC). By introducing resonant quarter-wave short-circuited transmission lines to each long side of the chassis edges, the earpiece speaker section of the chassis is electrically decoupled from the antenna section. The proposed technique has been validated through simulations and measurements.
Keywords
hearing aids; mobile antennas; mobile communication; transmission lines; chassis; hearing aid compatibility; mobile phones; quarter-wave transmission lines; terminal antennas; wavetraps; Antenna measurements; Auditory system; Electromagnetic fields; FCC; Interference; Mobile antennas; Mobile handsets; Resonance; Testing; Transmission line antennas;
fLanguage
English
Publisher
ieee
Conference_Titel
Antenna Technology, 2009. iWAT 2009. IEEE International Workshop on
Conference_Location
Santa Monica, CA
Print_ISBN
978-1-4244-4395-6
Electronic_ISBN
978-1-4244-4396-3
Type
conf
DOI
10.1109/IWAT.2009.4906893
Filename
4906893
Link To Document