Title:
ANTENNA FOR RADIO EQUIPMENT
Document Type and Number:
Japanese Patent JP3174690
Kind Code:
B2
Abstract:
PURPOSE: To provide an antenna for a radio equipment with stable antenna characteristics capable of easily obtaining the two kinds of the antenna characteristics by housing and pulling out a rod antenna.
CONSTITUTION: A coil antenna 16 is projected to the outer part of the case body 10 of the radio equipment, fixed and disposed, the rod antenna 24 is passed through the coil antenna 16 in an axial direction and freely housably and pullably disposed and the coil antenna 16 and the rod antenna 24 are turned to an insulated state. The base end of the coil antenna 16 is electrically connected to a transmission/reception circuit and the base end of the rod antenna 24 in a pulled out state is electrically connected through a matching circuit 38 to the transmission/reception circuit.
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Inventors:
Masaru Kano
Application Number:
JP18874594A
Publication Date:
June 11, 2001
Filing Date:
July 19, 1994
Export Citation:
Assignee:
Yokoo Co., Ltd.
International Classes:
H01Q1/24; H01Q1/10; H01Q1/50; H01Q9/32; (IPC1-7): H01Q1/24; H01Q9/32
Domestic Patent References:
| JP5343907A |
Attorney, Agent or Firm:
Tetsuo Moriyama