MIFARE DESFire EV3 card coil design guide
●MIFARE DESFire EV3, a passive device (without battery) is powered by a magnetic field generated by the PCD. To get the magnetic flux cut by the PICC, it also requires a loop antenna.
●This document describes some notes to the design of such loop antennas for MIFARE DESFire EV3.
●The detail loop antenna design is explained in [1]. Although such antennas are relatively straightforward in principle and look very similar when comparing various contactless smartcards, experience proves that their parameters do have a noticeable impact on performance.
●In this document, some examples are attached for your reference but please adapt and verify them before you go for production. In addition, customers who want to reuse existing MIFARE DESFire EV1 or MIFARE DESFire EV2 card coil antenna design or design a completely new antenna can also get information as to what considerations to make.
●In this document, the term „MIFARE DESFire card“ refers to a MIFARE DESFire IC-based contactless card.
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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17 December 2020 |
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Rev. 1.2 |
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AN12755;575812 |
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419 KB |
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