Transparent Antenna Loop for Portable Data Carrier Design

The patent applies parameter changes by transitioning from conventional opaque conductive materials to transparent conductive materials (such as ITO, IZO, or transparent conductive polymers like PEDOT:PSS). This material substitution changes the optical parameters of the antenna loop while maintaining its electrical conductivity, thereby enabling both optical transparency and RFID functionality simultaneously.

The patent employs composite materials by combining transparent conductive materials with the substrate and other card components. The transparent conductive layer is deposited or printed onto the substrate to form the antenna loop, creating a composite structure that exhibits both optical transparency and electrical conductivity properties required for RFID operation.

The patent applies universality by designing a manufacturing process that integrates multiple functions into single steps. The transparent conductive material is applied in a way that simultaneously forms both the antenna loop pattern and the optically transparent window areas, eliminating the need for separate processing steps for antenna fabrication and window creation.

The patent employs copying techniques by using maskless printing or photolithographic methods where the antenna loop pattern is directly transferred onto the transparent conductive material layer. This allows the antenna design to be replicated accurately while maintaining the transparency of the material, simplifying the manufacturing process compared to traditional multi-step fabrication methods.