AN ACTIVE RFID DEVICE OF 13.56MHz
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United States of America Patent
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Feb 13, 2015
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Aug 26, 2014
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Abstract
The invention discloses an active RFID device of 13.56 MHz, including a main body on which an SE chip an interface and an internal antenna are deployed, and an RF front-end chip The interface includes a power interface, an ISO/IEC7816 interface for operating the SE chip and an SPI interface for setting parameters for a register of the RF front-end chip. The RF front-end chip is coupled to a reader antenna via the internal antenna or an external antenna or a combination of the internal antenna and the external antenna. The device optimizes its contactless function and therefore meets more requirements from different scenarios.
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