Title:
DIRECTIONAL ANTENNA
Document Type and Number:
Japanese Patent JPH11214912
Kind Code:
A
Abstract:
To reduce the effects due to electromagnetic waves on a human body.
In an antenna which includes a holder part 4 fixed to a housing 1 of radio equipment, a 1st antenna part 10 that moves through the part 4 a freely slidably a stopper part 5 which is fixed to one end of the antenna 10 and becomes a power feeding part to the part 10 when it is extended, a sleeve part 6 that is provided on the other end and a 2nd antenna 20 that is provided on the tip of the part 6, a surface-treated member 3 which cuts off electromagnetic waves is provided at a desired place on at least one of the peripheries of the antenna parts 10 and 20.
Inventors:
MINEGISHI KAZUO
Application Number:
JP1387798A
Publication Date:
August 06, 1999
Filing Date:
January 27, 1998
Export Citation:
Assignee:
TOKIN CORP
International Classes:
H01Q1/10; H01Q1/24; H01Q1/36; H01Q9/30; H01Q11/08; H01Q17/00; (IPC1-7): H01Q1/24; H01Q1/10; H01Q9/30; H01Q17/00
Attorney, Agent or Firm:
Yosuke Goto (2 outside)