Secured document e.g. passport type booklet, for storing e.g. administrative data, has antenna with passive masking unit to interrupt coupling between transponder and reader to prevent reading of document

摘要

The document has a transponder formed of an electronic module (102) connected to an antenna (101) disposed on a surface of a recto and verso cover (22). A passive masking unit (24) of the antenna supported by another cover (21) interrupts the coupling between the transponder and a reader to prevent reading of the document in a predefined position of the latter cover, related to closed position of the document.