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SHORT DISTANCE WIRELESS COMMUNICATION

Near Field Communication (NFC) is a revolutionary short-range wireless communication technology that evolved from various contactless systems. Originating from Marconi's wireless telegraph concepts, NFC enables seamless interaction between devices such as mobile phones and smart cards through magnetic field induction at 13.56 MHz. With a working distance of up to 20 cm, it operates in both passive and active modes. Key components include the NFC controller IC and Secure Element (SE), facilitating secure and intuitive communication. Discover its specifications, applications, and the reasons behind its rapid adoption.

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SHORT DISTANCE WIRELESS COMMUNICATION

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  1. SHORT DISTANCE WIRELESS COMMUNICATION NEAR FIELD COMMUNICATION (NFC)

  2. HISTORY • Wireless telegraph was invented by Marconi • Initially L-C tuned circuit oscillator transmitter and super regenerative receiver formed the system • one of the most important technologies for intuitive, simple and safe communication

  3. Introduction to NFC • It evolved from the combination of existing contactless technologies • NFC can communicate with existing smart cards and reader, as well as NFC device • Now a days it is generally implemented into mobile phones

  4. How NFC WORKS • NFC communicates via magnetic field induction through loop antennas • Operating range - 13.56 MHz • Working distance: up to 20 cm • It has two operating modes: 1. Passive communication modes 2. Active communication modes

  5. NFC hardware and software • The most important component is NFC controller IC with an antenna • Second important component is secure Element(SE) • An application is written inside Java J2ME compliant mobile phone

  6. Characteristics of NFC • RF power output of several microwatts up to 100 milliwatts. • Principally indoor operation. • Omni- directional built in antennas. • Simple construction and relatively low price . • Battery-operated transmitter and receiver.

  7. Specifications • NFC Data Exchange Format (NDEF) • NFC Record Type Definition (RTD) • Smart Poster RTD • Text RTD • Uniform Resource Identifier (URI) RTD

  8. Comparison

  9. Application

  10. Thank You

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