Title:
TWO-STAGE ANTENNA AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2003283223
Kind Code:
A
Abstract:
To provide a two-stage antenna that is constituted in a simple structure for reducing the cost, is improved in yield by surely joining junction parts, and is provided with a cylindrical antenna element which is connected to a feeding section when the element is extended, and to provide a method of manufacturing the antenna.
This two-stage antenna 10 is provided with the cylindrical antenna element 13 which is connected to the feeding section when the element 13 is extended. The element 13 is constituted of a conductive pipe and has groove sections 13a which are utilized for the junction with the junction parts 12 and 16 at both ends.
Inventors:
NIIYAMA KANETAKA
NITOBE YUJI
NITOBE YUJI
Application Number:
JP2002087099A
Publication Date:
October 03, 2003
Filing Date:
March 26, 2002
Export Citation:
Assignee:
NEC TOKIN CORP
International Classes:
H01Q1/10; H01Q1/24; H01Q9/32; (IPC1-7): H01Q1/24; H01Q1/10; H01Q9/32
Attorney, Agent or Firm:
Kurihara Kiyoshi