Performance comparison between circular and elliptical type microspeakers for cellular phones

High-performance microspeakers with broad-band frequency are essential for multimedia function in cellular phones. With the increased size of multimedia liquid crystal display window, space for microspeakers is relatively reduced to maintain the same phone size. This paper introduces elliptical micr...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2003-09, Vol.39 (5), p.3256-3258
Main Authors: HWANG, Sang-Moon, HWANG, Gun-Yong, KWON, Joong-Hak, LEE, Hong-Joo, KANG, Beom-Soo
Format: Article
Language:English
Subjects:
Acoustics
Cellular phones
Coils
Electromagnetic analysis
Electromagnetic coupling
Exact sciences and technology
Frequency
Fundamental areas of phenomenology (including applications)
Liquid crystal displays
Loudspeakers
Magnetic analysis
Magnetic circuits
Magnetism
Maxwell equations
Physics
Transduction
acoustical devices for the generation and reproduction of sound
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Summary:High-performance microspeakers with broad-band frequency are essential for multimedia function in cellular phones. With the increased size of multimedia liquid crystal display window, space for microspeakers is relatively reduced to maintain the same phone size. This paper introduces elliptical microspeakers that have an advantage in mounting space over circular types. For sound pressure level analysis of the microspeakers, electromagnetic, mechanical, acoustic, and their coupling effects are considered for the analysis. Results show that the elliptical speakers have the equivalent performance as circular speakers with similar surface area.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2003.816740