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

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6 Author(s)
Hwang, Gun-Yong ; Dept. of Inf. & Commun. Eng., Youngsan Univ., Kyoungnam, South Korea ; Sang-Moon Hwang ; Hong-Joo Lee ; Kim, Ji-Hoon
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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.

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Magnetics, IEEE Transactions on  (Volume:41 ,  Issue: 5 )