Consider the label on a bottle of alcohol at the store meant to discourage stealing or the small device/sticker on a car windshield that allows fine-free toll road use: those are all RFID tags.

While most RFID tags are used for merchandise or to track packages, they can also be used to help track pets or patients in hospital settings.

What Are RFID Tags and How Are They Used?

RFID tags are a type of tracking system that uses radio frequency to search, identify, track, and communicate with items and people. Essentially, RFID tags are smart labels that can store a range of information from serial numbers, to a short description, and even pages of data. Some RFID tags include cryptographic security features for a high level of verification and authentication. RFID tags are usually identified by their radio frequencies: low frequency (LF), high frequency (HF), and ultra-high frequency (UHF).

LF systems have a range between 30 and 300 KHz and a read range up to 10 cm. These systems are more frequently used in applications like access control and livestock monitoring.

HF systems have a range between 3 and 30 MHz and a read range from 10 cm to 1 m (3 ft). These systems are commonly used for electronic tickets, payments, or user experience applications.

UHF systems have a range between 300 MHz and 3 GHz and a read range up to 12 m (39 ft). These are the systems most commonly used in retail inventory tracking, parking garages, door access, and asset management.

Passive vs. Active RFID Tags

There are two types of RFID tags — passive and active. Passive RFID tags are the most common; they do not require a direct line of sight to a reader but do have a much shorter read range, and are smaller in size and lightweight.

Passive RFID tags are ideal for:

Supply chain and inventory management

Asset and personnel tracking

Logistics

Industrial and manufacturing

Brand protection and anti-counterfeiting

Real-time location systems (RTLS) using 3D orientation insensitive design

Gate and perimeter access control

Pharmaceutical and healthcare

Entertainment and travel

Apparel and retail

Active RFID tags are less common and require their own transmitter and power source. These tags tend to be bulkier, rugged, durable, and more expensive. An example of an active RFID tag is a beacon used for RTLS, constant medical monitoring, or theme park attendance.

What Is NFC Technology?

A subset of HF RFID, near field communication (NFC) technology connects the Internet of Things (IoT) and can be used for more complex, secure interactions. The communication between an NFC tag and an object can go both ways, making everyday objects smarter and more trustworthy. NFC is limited to HF, close-proximity communication and only one NFC tag can be scanned at a time. NFC is incredibly simple to use and since most mobile devices are now NFC enabled, it typically does not require any additional infrastructure to adopt the technology.

Meihe’s RFID Tag Portfolio

RFID tags allow businesses to run efficiently with little cost and positive results.There are multiple options,including physical access cards, inlays, tags, labels, or touchless solutions, and adding tamper functionality can transform an RFID tag into a smart seal.Our portfolio offers a wide range of RFID solutions for any application imaginable.It even includes Eco-Friendly RFID Tags that boast the lowest carbon footprint in the industry.

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