Exploiting AMC structures in the design of wearable, platform-tolerant RFID tags

In this work we describe a platform tolerant, versatile RFID tag, easily tunable across the global RFID frequency band. The proposed RFID tag incorporates a compact Artificial Magnetic Conductor (AMC) structure, serving as a shielding element for an ungrounded tag antenna. It can be conveniently mounted on materials with low permittivity, metal objects, or attached to the human body for wearable applications, achieving a read range above 11 meters. The tag design prioritizes simplicity in manufacturing, enabling cost-effective production. Detailed design and simulations were conducted using CST Microwave Studio, a general-purpose software for analyzing 3D electromagnetic structures.