rfid ready Site-Network: rfid ready German | SMARTMag | autoid ready | logistic ready Subscribe | Imprint
rfid ready - RFID News & Articles  
Home RFID 101 RFID frequencies

RFID frequencies

E-mail Print
Tweet me!

Abbildung zeigt die verschiedenen RFID-FrequenzbereicheTransponders or Tags differentiate itself through different frequency ranges. Basically we classify into four kinds:

  • Low Frequency < 135 KHz
  • High Frequency 13,56 MHz
  • Ultra High Frequency 860-930 MHz
  • Microwaves 2,45 GHz

 

An important criteria for choosing a RFID system is the frequency band on which the RFID reader communicates with the transponder or tag. It is necessary that you pay attention that your new RFID system does not interfere with other radio systems.  That is why RFID is operating on ISM(=Industrial, Scientifical, Medical) frequency bands. They are reserved for usage in medical, industrial and scientifical applications.

Die following table summarizes the advantages and disadvantages of the frequency bands:

100-135 KHz 
AdvantagesDisadvantages
  • Use of low-cost passive transponders  
  • Good penetration of non-metallic objects, water and organic tissue
    Standardisation through ISO 11784/85
  • relatively impervious against metallic  interferences
  • Frequency band worldwide available
  • High permitted transmission power
  • Wide range of available transponder construction forms (high convolution of the coiled anntenna)
    Small data capacity
  • Slow data transfer
13,56 MHz 
AdvantagesDisadvantages
  • Use of low-cost passive transponders
  • Standardisation through ISO 15693, Part 1-3
  • High data capacity
  • average data transfer speed ( 26 kBit/s)
  • Frequency band worldwide available
  • High attenuation through metallic environments
  • Reading distance limited through legal regulations
  • Longer read distances can be achieved through bigger form factors of the antenna
869, 915 MHz 
AdvantagesDisadvantages
  • Long distances
  • Simple antenna design
  • cost-efficient
  • Standardisation (EPC - Electronic Product Code)
  • weak penetration through water  and organic tissue
2,45 GHz 
AdvantagesDisadvantages
  • High data transfer speed 
  • long reading distances
  • Large form factors
  • High prices 
  • Life is limited through battery power 
  • battery 
  • no standardisation

Comments (0)

Write comment

You must be logged in to post a comment. Please register if you do not have an account yet.

busy
 

Did you know that on rfid ready you can customize your newsletter?
Subscribe now for free Newsletter or to our RSS feeds