According to the standard that governs the technology, it uses an electromagnetic induction field to establish communication. For it to work, it is necessary to place two spiral-type antennas within these close electromagnetic fields.
NFC technology is an extension of RFID (Radio Frequency Identification) technology. The latter is a passive communication technology, whereby a short-range radio field activates a microchip in an RFID tag. This tag is nothing more than a chip placed on some identification card, which emits a short radio wave.
This mechanism makes it possible for the emitter of the field to identify a person or object. Communication is established in the 13.56 MHz frequency band. The latter implies that it is not necessary to have additional permits or licenses for its use, and anyone can use this technology without restriction.
For the correct operation of the technology, it is necessary that all devices support the two established operating modes. First of all, we have the active mode, where the two devices that want to connect via NFC create their own electromagnetic fields. This field is the one that will be used to transmit the data.
Second, we have the passive mode of operation. In this mode, only one of the two devices is responsible for generating the electromagnetic field. The second device uses field modulation to transmit the data. The device in charge of generating the magnetic field must be the one that initiates the communication.
Mobile phones that support NFC technology
The first mobile phone that included NFC technology as standard was the Nokia 6161 NFC. However, some phone manufacturers offered NFC-enabled phone cases before the release of the Nokia 6161.
As for smartphones, Nokia was once again the first to incorporate NFC technology in its Nokia C7 model. This device has built-in some functions based on NFC technology. Through this, it was possible to connect to wireless headphones or read NFC digital codes. Also, it could be used in AirTag email applications. It was also possible to collect loyalty points or use discount coupons.
There are also SIM cards that include the functionality of NFC technology. Called “tags”. In this way, these SIMs work equally well in traditional mobile phones, as well as in smart mobile phones.
Below is a list of the most popular smartphones with NFC technology. We clarify that not all phones support this technology. For this reason, if you don’t see your phone on this list, I encourage you to do some further research with the product manufacturer.
Main uses of NFC near field communication
The main uses of this technology are oriented to its fast data transmission speed and its use without limitations. For example, to synchronize various devices, this technology is very efficient, since the process occurs very quickly and with low energy consumption.
It is also frequently used in commercial advertisements with NFC tags that can be scanned and contain additional information.
Its security is also very robust, since as a result of the short range of the signal, it is practically impossible for it to be intercepted. Thanks to this characteristic, NFC is also used in the digital payment of products and services. A user can hold their NFC-enabled phone close to a vending machine, ATM, or other device to make a payment or withdraw money.
Conclusions
NFC technology is undoubtedly a technology with quite interesting functions. If you have an older laptop you may not have this technology installed. However, it is quite likely that when you decide to change it for a more modern one, it will have this technology incorporated.
