Near-field reduction techniques in the speaker area of slide mobile phones for improved HAC performance

Author

Bahramzy, Pevand ; Azzinnari, Leonardo ; Jakobsen, Kaj Bjarne ; Sager, Mads

Author_Institution

Molex Antenna Design Center, Molex Inc., Glostrup, Denmark

fYear

2009

fDate

1-5 June 2009

Firstpage

1

Lastpage

4

Abstract

This paper presents a method to improve the HAC of slide mobile phones. Although, the technique is demonstrated with a given commercial phone and for PCS band only, it could be adapted to other phones and bands as well. Simple antenna design and matching techniques can allow multi-band operation as well as high dimension flexibility. In the investigated cases, the two ILPE that are connected to the DPWB results in a reduction in excess of 45:9% for passive NF and of 40:3% for active NF at the resonant frequency of the ILPEs.

Keywords

hearing aids; mobile antennas; mobile handsets; personal communication networks; DPWB; HAC; PCS band; antenna design; hearing aid compatibility; multiband operation; near-field reduction; slide mobile phones; Acoustic noise; Auditory system; Displays; FCC; Frequency; Mobile antennas; Mobile handsets; Noise measurement; Personal communication networks; Virtual prototyping;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE

Conference_Location

Charleston, SC

ISSN

1522-3965

Print_ISBN

978-1-4244-3647-7

Type

conf

DOI

10.1109/APS.2009.5172181

Filename

5172181