A radio frequency identification (RFID) system is described that utilizes a substantially-contiguous conductive shield to shape an electromagnetic field formed by an antenna for communication with RFID tags. The antenna and the conductive shield have substantially planar forms, and may be mounted to...http://www.google.es/patents/US20050186902?utm_source=gb-gplus-sharePatente US20050186902 - Field-shaping shielding for radio frequency identification (RFID) system
Field-shaping shielding for radio frequency identification (RFID) system
Número de solicitud: 10/784,109 Número de publicación: US 2005/0186902 A1 Fecha de presentación: 20 Feb 2004 Patente emitida: US7421245 ( Fecha de emisión 2 Sep 2008)
