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RFID Tags and Labels
BCI provides best in class RFID tags and Smart labels from Zebra and
Motorola to meet your needs.
Before you plan to purchase your RFID media
ask yourself these questions:
- What size and form do I need?
- How close will the tags be to each other?
- Will the tag need to have a strong protection against wear and tear?
- Should the tag be re-useable?
- Will the tag be exposed to harsh environments?
- What will be the tag orientation with respect to the reader field?
- What tag operating frequency (LF, HF, UHF) is required?
- What standards and protocols (ISO, EPC) are required?
- What are the required read/write distances?
- Will the tag be used on/near metal or liquids?
- What is the operational environment in terms of electrical noise, radio devices etc?
Types of RFID Tags
RFID Tags can be further categorized according to:
Writability
RFID tags are readable, writable, and single- write tags. Although, most of the tags today are read/write.
| Read Only |
Write Once Read Many(WORM) |
Read/Write |
| Programmed at Factory |
Typically programmed when
attached to asset |
Programmed “on the fly” |
Data is static and cannot be
altered after manufacturing |
Data is static and cannot be
altered once written |
Data is dynamic and can
be changed anytime |
| |
Programmed at Factory |
Programmed at Factory |
Passive Tags
- These tags are not battery driven and draw power directly from the radio signals that the reader uses to talk to the tag.
- Hold small amounts of data
- Have a much shorter read distance: Up to 16 feet but this is highly dependent on frequency.
Semi Passive Tags
- Have a battery but not a transmitter and communicate similar way as passive tags - by signal reflection from the reader. This method is called passive backscatter.
- Can carry environmental sensors.
- Can be integrated into labels or have larger size, depending on the battery technology.
- Price depends on complexity and capabilities.
Active Tags
- Have a power source (usually a battery) and a radio transmitter.
- Large memory for data
- Read ranges up to 1000 feet
- Relatively expensive
- Relatively large size (compared to passive tags)
- Can be often combined with environmental sensors.
Four Frequency bands are common in Tag Design
- 125 - 134 kHz (LF)
- 860 - 960 MHz (UHF)
- 13.56 MHz (HF)
- 2.4 GHz (Microwave)
- Specialized products use also use 5-7 MHz (EAS), 433 MHz (active tags), 5.8 GHz (new applications).
To learn more about the RFID Tags and Smart labels offered by Bar Code Integrators Inc. click here
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