Global Patent Index - EP 1668741 A2

EP 1668741 A2 20060614 - APPARATUS FOR AND METHOD OF USING A CLOSE-PROXIMITY ANTENNA

Title (en)

APPARATUS FOR AND METHOD OF USING A CLOSE-PROXIMITY ANTENNA

Title (de)

VORRICHTUNG UND VERFAHREN ZUR VERWENDUNG EINER NAH-PROXIMITÄTS-ANTENNE

Title (fr)

APPAREIL ET PROCEDE PERMETTANT D'UTILISER UNE ANTENNE DE PROXIMITE IMMEDIATE

Publication

EP 1668741 A2 20060614 (EN)

Application

EP 04760938 A 20040507

Priority

  • US 2004014396 W 20040507
  • US 46902403 P 20030509
  • US 47984603 P 20030620

Abstract (en)

[origin: WO2004102735A2] In accordance with an exemplary embodiment of the invention, an antenna structure is provided having a "figure eight"-type geometry. Preferably, the "figure eight" antenna structure is a planar antenna having two center feed contacts which form a feed point for the antenna. The unique antenna structure has particular application in tag reader antenna systems for use in RFID (radio frequency identification) applications (13.56MHz) and the like. In accordance with an exemplary embodiment, multiple RF (radio frequency) antennae are utilized as part of an intelligent station to track items tagged with radio frequency identification (RFID) tags.

IPC 1-7

H01Q 7/00

IPC 8 full level

G06K 7/08 (2006.01); H01Q 1/38 (2006.01); H01Q 7/00 (2006.01)

CPC (source: EP)

G06K 7/10316 (2013.01); G06K 7/10336 (2013.01); G06K 19/07758 (2013.01); H01Q 1/38 (2013.01); H01Q 7/00 (2013.01)

Citation (search report)

See references of WO 2004102735A3

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2004102735 A2 20041125; WO 2004102735 A3 20051201; EP 1668741 A2 20060614

DOCDB simple family (application)

US 2004014396 W 20040507; EP 04760938 A 20040507