Comparison of various magnetic circuits of integrated microspeakers and dynamic receiver used for mobile phones

Author

Hwang, S. ; Kwon, J. ; Hwang, G.

Author_Institution

Pusan Nat. Univ., Pusan

fYear

2006

fDate

8-12 May 2006

Firstpage

307

Lastpage

307

Abstract

Driven by customer´s demand, small sized mobile phones are realized due to latest development in electronics. For acoustic parts such as microspeakers and dynamic receivers, however, size reduction is relatively difficult due to their mechanical characteristics. An integrated device (microspeaker and dynamic receiver within one structure) has been developed to realize efficient size reduction. In this paper, a systematic analysis of magnetic field and acoustic characteristic is performed using finite element method (FEM) analysis. The analysis includes magnetic field analysis, vibration analysis and acoustic analysis.

Keywords

finite element analysis; loudspeakers; magnetic circuits; mobile handsets; acoustic analysis; acoustic characteristic; acoustic parts; dynamic receiver; finite element method; integrated device; integrated microspeakers; magnetic circuits; magnetic field analysis; mechanical characteristics; mobile phones; size reduction; vibration analysis; Acoustic devices; Coils; Electromagnetic forces; Magnetic analysis; Magnetic circuits; Magnetic fields; Mobile handsets; Resonance; Resonant frequency; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.375889

Filename

4261740