Title:
PLANAR ANTENNA DEVICE
Document Type and Number:
Japanese Patent JP2003347837
Kind Code:
A
Abstract:
To provide a planar antenna device capable of being effectively applied to a plurality of frequency bands of radio waves.
When power is fed to a feed wiring 2 of a radiating element 1, the longer of a conductive portion 1a of the radiating element 1 resonates to a signal of the lower frequency band to radiate radio wave having a low-frequency band, and each of shorter conductive portions 1b, 1c of the radiating element 1 resonates with a signal of a high-frequency band, to radiate a radio wave having a high-frequency band. The planar antenna device, capable of being effectively applied to the plurality of frequency bands can be realized by using the radiating element 1.
Inventors:
CHO KIN
KADO SEIJI
SATO HIROAKI
KADO SEIJI
SATO HIROAKI
Application Number:
JP2002151101A
Publication Date:
December 05, 2003
Filing Date:
May 24, 2002
Export Citation:
Assignee:
HITACHI CABLE
TOSHIBA CORP
TOSHIBA CORP
International Classes:
H01Q21/06; H01Q1/38; H01Q5/10; H01Q13/08; (IPC1-7): H01Q13/08; H01Q1/38; H01Q5/01; H01Q21/06
Attorney, Agent or Firm:
Nobuo Kinutani