Customized antennas visible through windows


Since the diffractive optical variable device usually lies above the laser-engraved photograph, the remaining threat – photo substitution by milling from the rear of the card – is effectively deterred by introducing overt or covert antenna design elements beneath the portrait.

As the design elements form an integral part of the electronic circuit, milling from the rear will effectively disengage the chip functionality thereby forcing the attacker to counterfeit the complete card.

  • Permits visual inspection of electronic components (document specific designs)
  • Protection against chip/antenna substitution
  • Protection against manipulation of photo from rear side
  • Chip disengaged when antenna is manipulated
Freeform antenna - visible through a window on the reverse of a polycarbonate card or passport datapge
Freeform antenna
Freeform antenna with direct embossed KINEGRAM Image - visible through a window on the reverse of a polycarbonate card or passport datapage
Freeform antenna with direct embossed KINEGRAM Image - visible through a window on the reverse of a polycarbonate card or passport datapage
Freeform antenna with transparent KINEGRAM inlay - visible through a window on the reverse side of a polycarbonate card or passport datapge
Freeform antenna with transparent KINEGRAM inlay - visible through a window on the reverse side of a polycarbonate card or passport datapge
Illustration showing the ideal position of the freeform antenna. The antenna protects the portrait from the reverse of a polycarbonate card or passport datapage.
Illustration showing the ideal position of the freeform antenna. The antenna protects the portrait from the reverse side of the card.

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