Title:
THIN SLOT ANTENNA HAVING CAVITY, ANTENNA POWER FEEDING METHOD, AND RFID TAG DEVICE USING THE ANTENNA AND THE METHOD
Document Type and Number:
WIPO Patent Application WO/2008/029769
Kind Code:
A1
Abstract:
Provided are a highly efficient thin slot antenna having a cavity, and a RFID tag
device. The thin slot antenna can be attached to curved surfaces of a human body,
things and the like, and furthermore, has relatively freely deformable flexible
characteristics, and has an extremely small characteristic change due to deformation
and that due to bodies to be attached to. A bag-like body having a cavity (12) is
formed by using a conductor foil of aluminum or the like or a foil deposited with
a conductive metal such as aluminum and by forming the foil in bag shape. A relatively
soft dielectric sheet (13) is put in the cavity (12), and a slot (14) is arranged
at the width direction center position on one surface of the bag-like body, in
the longitudinal direction.
More Like This:
| WO/2004/062035 | WIDE BANDWIDTH FLAT PANEL ANTENNA ARRAY |
| WO/2003/085780 | TRI-BAND ANTENNA |
| JP2009055414 | PLANAR ANTENNA |
Inventors:
KITAYOSHI, Hitoshi (59-49, Aza-Kaidoh Kamiayashi, Aoba-ku, Sendai-sh, Miyagi 24, 9893124, JP)
北吉 均 (〒24 宮城県仙台市青葉区上愛子字街道５９－４９ Miyagi, 9893124, JP)
北吉 均 (〒24 宮城県仙台市青葉区上愛子字街道５９－４９ Miyagi, 9893124, JP)
Application Number:
JP2007/067145
Publication Date:
March 13, 2008
Filing Date:
September 03, 2007
Export Citation:
Assignee:
KITAYOSHI, Hitoshi (59-49, Aza-Kaidoh Kamiayashi, Aoba-ku, Sendai-sh, Miyagi 24, 9893124, JP)
北吉 均 (〒24 宮城県仙台市青葉区上愛子字街道５９－４９ Miyagi, 9893124, JP)
北吉 均 (〒24 宮城県仙台市青葉区上愛子字街道５９－４９ Miyagi, 9893124, JP)
International Classes:
H01Q13/10; G06K19/07; G06K19/077; H01Q1/24; H01Q1/38
Attorney, Agent or Firm:
FUKUMORI, Hisao (2F Fuji Building, 5-11 Kudanminami 4-chome, Chiyoda-ku Tokyo 74, 1020074, JP)
Download PDF: