Electronic antenna module optimised for a chip card with a dual communication interface

Abstract

The invention relates to an electronic module for a chip card, comprising a substrate having, on a first face, a terminal block of electrical contacts that are standardized according to the ISO 7816 standard enabling an operation by contact with the corresponding contacts of a chip card reader and connection sinks positioned opposite the standardized contacts, the substrate comprising, on a second face, an antenna and a microelectronic chip protected by an encapsulation zone and provided with a communication interface with contact and a contactless communication interface provided with two terminals intended to be connected to the two ends of an antenna of the electronic module arranged inside the encapsulation zone, wherein the antenna comprises at least two separate and non-concentric spiral windings, arranged such that none of the spiral windings surrounds the set of connection sinks of the module.