ACTIVE 13.56MHZ RFID DEVICE

摘要

The invention discloses an active RFID device of 13.56MHz, including a main body (1) on which an SE chip (2), an interface and an internal antenna (3) are deployed' and an RF front-end chip (4). The interface includes a power interface (5), an ISO/IEC7816 interface (6) for operating the SE chip (2) and an SPI interface (7) for setting parameters for a register of the RF front-end chip (4). The RF front-end chip (4) is coupled to a reader antenna (9) via the internal antenna (3) or an external antenna (8); or the RF front-end chip (4) is coupled to a combination of the internal antenna (3) and the external antenna (8). The device optimizes its contactless function by flexible switching or combining the internal antenna and the external antenna and therefore meets more requirements from different scenarios.