EAS+RFID Tag Configuration

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engsamir

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Hi All ,
I just want to confirm if i got this right .

RFID + EAS (electronic article surveillance) use to 2 different frequencies for configuration (one for for RFID part 800-900MHz and the other one to set up arm/disarm the EAS which is 8.2Mhz ) , is this correct?
if yes then can any one please provide me with a reference on how to design 8.2Mhz compact antenna ( 30*30 cm max or smaller if possible ,for near detection ), i assume it will be a loop antenna :roll: ???
if i got it all wrong i hope someone can explain it to me ...


Tq
 

Diffferent RFID standards use different frequencies, e.g. 125 kHz, 13.56 MHz and 900 MHz.

RF EAS tags are simple passive LC resonators, see Wikipedia article: https://en.wikipedia.org/wiki/Electronic_article_surveillance
 


how to design a small 8.2Mhz patch antenna
A patch antenna for 8.2 MHz would have a size > 10 m. EAS and 13.56 MHz RFID systems are using resonant loop "antennas". You can refer to design guides for long range RFID and change it to 8.2 MHz, e.g.:
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