ELECTRO-ACOUSTIC TRANSDUCER

摘要

PROBLEM TO BE SOLVED: To provide an electro-acoustic transducer capable of reducing a cost by eliminating the necessity of a flexible substrate and a molded interconnection device (MID) antenna.

SOLUTION: A power feeding terminal 26 for high frequency power is arranged in a protector 14 for protecting a diaphragm 13 of a speaker 11. An antenna is formed by defining a distance along the contour of an opening part formed by sound discharge holes 24a, 24b and slits 25a, 25b from the power feeding terminal 26 as an electric length. The shape of a part of a component originally arranged in an electro-acoustic transducer is changed thereby to realize an antenna function, so that a cost is reduced.

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