Title:
ANTENNA
Document Type and Number:
Japanese Patent JPH11261327
Kind Code:
A
Abstract:
To provide an antenna in which a helical coil and a sleeve are jointed to each other excellently and which is easily manufactured.
The antenna used for a portable radio device is provided with a helical coil 1 inside an antenna top 7. This helical coil 1 has its specific part joined with the sleeve 2 as a feed part. The winding pitch is less at the specific part than at other parts and the number of turns is at least one turn less. The specific part is wound preferably closely.
Inventors:
OTOMO SHINICHI
Application Number:
JP6291498A
Publication Date:
September 24, 1999
Filing Date:
March 13, 1998
Export Citation:
Assignee:
TOKIN CORP
International Classes:
H01Q1/24; H01Q1/36; H01Q1/40; H01Q9/30; H01Q11/08; (IPC1-7): H01Q9/30; H01Q1/24; H01Q11/08
Attorney, Agent or Firm:
Yosuke Goto (2 outside)