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RFID-enabled label selection usually starts with a particular RFID frequency and protocol.
You also want to select an RFID-enabled label that minimizes cost, while offering a good performance margin.
There are several other factors beyond the microchip that determines an RFID-enabled labels performance.The most fundamental measure of an RFID-enabled label's performance is the ability to read the label at the necessary distance under a given set of circumstances.
Several Key Factors Impact Read Distance: |  |  What is RFID?
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| | Implementing RFID
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| | Value of RFID
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| | RFID in Action
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| Market trends
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| | An emerging intelligent label technology
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| | RFID today
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| Why Avery Dennison
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| | Products & services
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| | Selecting RFID labels
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| Action guideline
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| RFID in action
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| White papers
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| Contacts & references
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Orientation
The likelihood of the RFID-enabled label transmitting to the antenna is increased if the tag is readable from any angle. This also avoids potential logistical costs. For example, requiring a specific label placement on cartons.
Although many current RFID-enabled labels have blind spots in their radiation patterns, Avery Dennison's proprietary three-dimensional antenna technology eliminates these blind spots.
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Product Environment
RFID-enabled labels must be compatible with the products onto which they're applied. Metal, liquid and other carton contents can detune typical RFID labels.
Avery Dennison has devised proprietary auto-compensating technology to address this problem.
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Size of Antenna
The antenna size impacts the read range significantly. Holding all else constant, the smaller the antenna, the shorter the read range. That said, some packaging requires a smaller label (for example, a pharmaceutical bottle) and therefore a smaller antenna. Note that a smaller label is not generally less expensive. The chip, not the label size, is the major cost driver.
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Label Construction and Durability
RFID labels have to withstand different levels of physical abuse, depending on where and how they're applied. It is important to understand the environments in which that label will operate and work with label vendors that understand the traditional challenges of label performance, as well as the added complexities associated with the inclusion of RFID technology into a label.
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