Complete Guide About RFID Tags

RFID tags (also known as RFID chips) are a kind of tracking system that use barcodes to identify items. As we know that RFID is the abbreviation for radio frequency identification, that’s why the tags use radio frequency technology. These tags are useful for merchandising. However, they are also helpful in tracking vehicles, pets, etc. Let’s dig in more to know everything about RFID tags.

URA4 Fixed Android RFID Reader banner

What Are RFID Tags?

These tags are a fundamental component of any traceability system. 

For the transmission of information contained in them to a reader, they use radio frequencies.

Radio frequency technology is helpful for tracking and tracing purposes.

How Does The Tags Communicate?

There are two ways of communication (coupling) used by RFID systems : 

Inductive coupling: The mode of operation is at the HF frequency.

It consists of the emission of a magnetic field by the reader. 

Capacitive coupling: The mode of operation is at the UHF frequency. 

It consists of the emission of an electromagnetic propagation wave to search a tag in the vicinity. 


How Does The Tags Work

It works by transmitting and receiving information through an antenna and a microchip (or integrated circuit).

Whatever information the user wants is written on this microchip.

It is then attached to the RFID reader.

How Useful Are These Tags?

These tags are useful in many areas.

Mainly they are used for tracing of inventory, goods, vehicles, pets and even to record patient’s medical history in hospitals and residences.

Do you know you might have come across a tag more than once without noticing? 

Here are some examples:

  • Anti-loss wristbands used for children and patients.
  • Luggage tracker at airports.
  • Electronic toll systems.
  • Anti-theft systems in stores and malls.
  • Attendee tracker.
  • Traceability.
  • Automatic library system.
  • Laundry management.

Disadvantages Of RFID Tags

Everything has its pros and cons. 

Below are the reasons why RFID tags are not ideal as compared to other tracking labels. 

  • Firstly, Security and technological issues.
  • The tags can’t differentiate between readers. Almost anyone can read the information.
  • The RFID readers are portable and the range of some tags is great, thus scammers can easily gather information. 
  • You can link RFID tags to credit cards. It creates the potential for theft and fraud.
  • The RFID systems can easily get jammed or disrupted. Therefore, it reduces their productivity because they operate on radio frequency. 
  • It is time-consuming and requires labor to set up. 
  • Organizations need to test many hardware and tag systems to determine the best fit for their business, which takes months to arrange. 
  • Establishing the RFID system is costly as it involves the cost of the tags and scanners, increase in time and labor means an increase in cost.

Despite disadvantages, RFID offers many advantages over the barcode.

In other words, we can’t deny the fact that an RFID tag can hold much more data than a barcode. 

The tags are not prone to the damages.

Whereas barcode labels face damages such as ripping and smearing.

From the variety of tags available to the read distance range, RFID has come a long way and there is a bright future ahead.

If you have any query about RFID tags, drop in the comment section!!!