Title:
DIPOLE ANTENNA DEVICE
Document Type and Number:
Japanese Patent JP2007081903
Kind Code:
A
Abstract:
To provide a dipole antenna device, of which the impedance can be readjusted easily at the mounting the antenna into a casing.
A dipole antenna device 21 is configured with two antenna elements 22, formed with cylindrical conductor and a removable dielectric block 28 for adjusting the impedances. The cylindrical conductor is divided into two at the center, and is provided with an antenna output terminal 23 for extracting received electric wave output from the center side of the conductor. As for fixing the dielectric block 28, a convex part 30 is arranged at the antenna element 22, and a concave part 29 that corresponds to the convex part 30 is arranged at the dielectric block side.
Inventors:
SHINKAI SOTARO
Application Number:
JP2005267842A
Publication Date:
March 29, 2007
Filing Date:
September 15, 2005
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H01Q1/52; H01Q1/38; H01Q1/50; H01Q9/16; H01Q21/10
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano