New development of integrated microspeaker and dynamic receiver used for cellular phones

Acoustic parts, such as a microspeaker and a dynamic receiver, are essential to generate high-quality sound in the next generation cellular phones. Size reduction of those parts is also an important issue to be adopted by a smaller sized cellular phone. The most realistic approach for the reduction...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2003-09, Vol.39 (5), p.3259-3261
Main Authors: HWANG, Sang-Moon, LEE, Hong-Joo, KIM, Ji-Hoon, HWANG, Gun-Yong, LEE, Won-Yeoul, KANG, Beom-Soo
Format: Article
Language:English
Subjects:
Acoustic devices
Acoustics
Aerodynamics
Cellular phones
Coils
Electromagnetic analysis
Electromagnetic coupling
Equations
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Loudspeakers
Magnetic analysis
Magnetism
Physics
Transduction
acoustical devices for the generation and reproduction of sound
Vibrations
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Summary:Acoustic parts, such as a microspeaker and a dynamic receiver, are essential to generate high-quality sound in the next generation cellular phones. Size reduction of those parts is also an important issue to be adopted by a smaller sized cellular phone. The most realistic approach for the reduction of size is accompanied by integrating at least two parts within a structure. This paper introduces a new development of an integrated microspeaker and a dynamic receiver by considering electromagnetic, mechanical, and acoustic analysis. By sharing magnetic circuit and vibration space, the proposed design shows better sound characteristics maintaining about the same size.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2003.816741