Title:
多数のトランスポンダとの通信用のアンテナ
Document Type and Number:
Japanese Patent JP2008507185
Kind Code:
A
Abstract:
An antenna (1) for communication with a multitude of transponders (6a . . . 6c) is provided, the antenna (1) having an antenna conductor (2) which completely encloses at least one read/write region (4c) intended for a transponder (6c) individually and/or, when a multitude of read/write regions (4a, 4b) are arranged within a continuous inner region (3) enclosed by the antenna conductor (2), the inner region (3) has constrictions (5a) between the read/write regions (4a, 4b) so that the antenna conductor (2) largely encloses these read/write regions (4a, 4b) individually. The electromagnetic field radiated by the antenna (1) is thereby concentrated on the read/write regions (4a . . . 4c).
Inventors:
Paul, Hubmer
Christian, Schwaber
Christian, Schwaber
Application Number:
JP2007520959A
Publication Date:
March 06, 2008
Filing Date:
July 13, 2005
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H01Q7/00; G06K17/00; G06K19/07; G06K19/077; H01Q1/22; H01Q1/36; H01Q11/14; H04B5/02
Attorney, Agent or Firm:
Kenji Yoshitake
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki