Title:
ANTENNA FOR MOBILE COMMUNICATION EQUIPMENT AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP3264885
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide the structure of an antenna for portable radio equipment, which is fitted to mass production, whose cost can be reduced and by which the stable product of high quality can be obtained, and to provide the forming method of the antenna.
SOLUTION: The antenna is formed of a rod antenna part 13 which can slide in the pull-out direction and the retract direction for the casing S of mobile communication requipment and a coil antenna part 23 which is installed through an insulating joint part 30 provided at the tip of the rod antenna part 13 and which operates in a state where it protrudes from the casing S when retracting the rod antenna part 13. In such a case, the rod antenna part 13 in integrally formed in a part of the joint part 30. A conductive sleeve 40 having a through hole connected to the coil element 21 of the coil antenna part 23 is inserted into the other part of the joint part 30 and the part is integrally formed with the bobbin 21 of the coil antenna part 23. Thus, the conductive sleeve 40 is fixed.
Inventors:
Shinichi Mori
Jutsuya Kato
Jutsuya Kato
Application Number:
JP15478898A
Publication Date:
March 11, 2002
Filing Date:
June 03, 1998
Export Citation:
Assignee:
Yokoo Co., Ltd.
International Classes:
H01Q1/10; H01Q1/24; (IPC1-7): H01Q1/24; H01Q1/10
Domestic Patent References:
| JP1013137A | ||||
| JP799404A | ||||
| JP9275309A | ||||
| JP7235820A | ||||
| JP832332A | ||||
| JP1168436A | ||||
| JP11205020A | ||||
| JP11340717A | ||||
| JP11261327A | ||||
| JP1188021A | ||||
| JP11122016A |
Attorney, Agent or Firm:
Kobashi Shinjun