Application of Taguchi method to robust design of acoustic performance in IMT-2000 mobile phones

Author

Hwang, Gun-Yong ; Hwang, Sang-Moon ; Hong-Joo Lee ; Kim, Ji-Hoon ; Hong, Keum-Shik ; Lee, Won-Yeoul

Author_Institution

Dept. of Inf. & Commun. Eng., Youngsan Univ., Kyoungnam, South Korea

Volume

41

Issue

5

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

1900

Lastpage

1903

Abstract

This paper describes an approach to design of acoustic devices, such as microspeaker and dynamic receiver, considering the acoustic characteristics improvement in IMT-2000 mobile phones. The analysis of a newly designed microspeaker considering mechanical, electrical, and magnetic coupling effects is performed using the finite-element method (FEM) and its validity is confirmed as well by experiments. Also, a statistical approach is suggested to identify a certain relationship between a mobile phone and a newly designed microspeaker. The approach is based on the Taguchi method and utilizes the orthogonal array for design of experiments (DOE). The concept of signal-to-noise (S/N) ratio is applied to evaluate the acoustic performance in mobile phones.

Keywords

Taguchi methods; acoustic devices; design of experiments; finite element analysis; mobile handsets; IMT-2000 mobile phones; SPL; Taguchi method; acoustic characteristics improvement; acoustic devices; acoustic performance; design of experiments; dynamic receiver; electrical coupling; finite-element method; magnetic coupling; mechanical coupling; microspeaker; robust design; Acoustic applications; Acoustic devices; Couplings; Design methodology; Finite element methods; Magnetic analysis; Mobile handsets; Performance analysis; Robustness; US Department of Energy; Acoustic characteristics; IMT-2000; SPL; Taguchi method; coupling; finite-element method; microspeaker;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.846255

Filename

1430994