ANTENNA FOR ELECTRONIC WATCH
PROBLEM TO BE SOLVED: To suppress the occurrence of an eddy current and to miniaturize an antenna.SOLUTION: An antenna 1 for an electronic watch includes: a magnetic core 3; winding 5 wound around the magnetic core 3 so as to expose the magnetic core on both sides of the winding 5; and a magnetic me...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To suppress the occurrence of an eddy current and to miniaturize an antenna.SOLUTION: An antenna 1 for an electronic watch includes: a magnetic core 3; winding 5 wound around the magnetic core 3 so as to expose the magnetic core on both sides of the winding 5; and a magnetic member 7 including a magnetic core coating portion covering at least a part of the magnetic core 3 exposed on both sides of the winding 5 and a winding coating portion covering the winding. The magnetic core coating portion of the magnetic member 7 is provided with a narrow part 9 narrower than the winding coating portion, whereby the occurrence of an eddy current is suppressed and the antenna is miniaturized. |
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