The document provides an overview of Near Field Communication (NFC), a short-range wireless communication technology primarily aimed at mobile devices. It explains the operation, features, advantages, and disadvantages of NFC, emphasizing its ability for secure two-way data exchange using inductive coupling. Applications of NFC include simplified transactions and data sharing, although it has limitations such as compatibility issues and higher device costs.

1. NEAR FIELD
COMMUNICATION
PRESENTED BY;Mainpal
ECE SEMESTER -VII
WIT (UTU)

2. CONTENT
 INTRODUCTION OF NEAR FIELD COMMUNICATION
 WHAT IS NFC
 OPERATION OF NFC
 MODES OF NFC
 FEATURES OF NFC
 ADVANTAGE
 DISADVANTAGE
 APPLICATION
 CONCLUSION

3. INTRODUCTION OF NFC
 Near-field communication (NFC) is a form of short-range
wireless communication .
 NFC is wireless technology which provide communication
between two mobile phones, which contain NFC tags, using
short range radio waves.
 NFC technology uses RFID for data/information exchange
between two devices over a short distance like Bluetooth &
Wi-Fi technology.
 NFC enabled smart phone users can make transaction &
access info with only a simple touch.
 NFC device can send & receive data simultaneously, so this
technology has a very bright future scope.

5. WHAT IS NFC
 NFC is a short range high frequency wireless communication
technology.
 A radio communication is established by touching the two phones or
keeping them in a proximity of a few centimeters.
 NFC is mainly aimed for mobile or handheld devices.
 NFC is an extension of Radio frequency identification or RFID
technology.
 RFID is mainly used for tracking and identification by sending radio
waves.
 It allows for simplified transaction , data exchange, and wireless
connection between two devices.
 Allows communication between:
 Two powered (active)devices.
 Powered and non self-powered(passive)devices.

7. OPERATION OF NFC
 NFC is based on inductive coupling.
 NFC works using magnetic induction between
two loop antennas.
 A reader emits a small electric current , which
creates a magnetic field.
 That field is received by a similar coil in the
client device, where it is turned back into
electrical impulses to communicate data.
 So, NFC use an initiator and a target.
 NFC technology is also working offline.

10. FEATURES OF NFC
 NFC allow two –way communication between
endpoints.
 It operates frequency band of 13.56MHZ, a
bandwidth of 14 KHZ.
 Working distance up to 10 cm.
 Supported data rates: 106, 212 and kb.
 Two devices to communicate using NFC ,one
devices must have an NFC reader/writer and one
must have an NFC tag.

11. ADVANTAGE
 NFC provide secure communication to all users.
 It promotes the transfer of data through safe
channel.
 It allow indivisuals to share data cost efficiently.
 NFC allow user to connect to other device in less
than one second.
 To way data communication.

12. DISADVANTAGE
 It may not be compatible with other device.
 NFC compatible device is costly.
 It may not align with the goals of the
organization.

13. APPLICATION

14. CONCLUSION
 The range transmission is much shorter than
Bluetooth.
 Perfect for passive device, such as the
advertising tags that operate rate any major
power source requirement.
 Speed faster connectivity.
 NFC operate on a much lower
frequency(13.56mhz) compare to
Bluetooth(2.4to2.5ghz).

15. THANK YOU