Title:
アンテナ装置および時計
Document Type and Number:
Japanese Patent JP7054434
Kind Code:
B2
Abstract:
To provide an antenna device capable of stabilizing antenna characteristics, and a watch having the same.SOLUTION: An antenna device includes a case body 8 formed of a synthetic resin, an exterior antenna member 9 which is provided on the upper part of the case body 8, receives a radio wave and is formed of metal, and a switch button 5 provided in the vicinity of the exterior antenna member 9, where an interval of the exterior antenna member 9 and a metal cylindrical member 14 of the switch button 5 is set to have a length such that a capacitive coupling is weak. Accordingly, even when the metal cylindrical member 14 of the switch button 5 approaches the exterior antenna member 9, the interval of the exterior antenna member 9 and the cylindrical member 14 is set to have a length such that a capacitive coupling is weak to reduce variation in antenna efficiency generated by variation in the intervals between the exterior antenna member 9 and the cylindrical member 14 and to stabilize antenna characteristics.SELECTED DRAWING: Figure 2
More Like This:
| JPS5917797 | [Title of the Invention] Digital electronic wrist watch |
| JPS5313475 | ELECTRONIC TIMEPIECE |
Inventors:
Daisuke Uematsu
Takashi Sano
Youguchi Kawaguchi
Ryomi Ichimura
Takumi Yasuda
Takashi Sano
Youguchi Kawaguchi
Ryomi Ichimura
Takumi Yasuda
Application Number:
JP2017194004A
Publication Date:
April 14, 2022
Filing Date:
October 04, 2017
Export Citation:
Assignee:
CASIO COMPUTER CO.,LTD.
International Classes:
G04C9/00; G04R60/06; G04G21/04; H01Q1/22; H01Q1/52
Domestic Patent References:
| JP201462847A |
Attorney, Agent or Firm:
Kashima Hidemi