Nov 11, 2017 #1 A Apple153 Newbie level 4 Joined Oct 24, 2017 Messages 5 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 38 Question on rfid range for deiferent frequncies Hi I would like to know in RFID, why lower frequencies have shorter read range as we can see on this website **broken link removed** Usually, higher frequencies have less coverage. Why in RFID is it the oposite ? thank you
Question on rfid range for deiferent frequncies Hi I would like to know in RFID, why lower frequencies have shorter read range as we can see on this website **broken link removed** Usually, higher frequencies have less coverage. Why in RFID is it the oposite ? thank you
Nov 12, 2017 #2 KlausST Advanced Member level 7 Joined Apr 17, 2014 Messages 25,275 Helped 4,873 Reputation 9,767 Reaction score 5,566 Trophy points 1,393 Activity points 169,217 Re: Question on rfid range for deiferent frequncies Hi, Usually, higher frequencies have less coverage. Click to expand... This depends on antenna type and RF power... Do you know what RF power and what antenna types are used on the different systems. And the different systems are used for different applications. You won't use an RFID system with 100m range for door opening systems. Klaus
Re: Question on rfid range for deiferent frequncies Hi, Usually, higher frequencies have less coverage. Click to expand... This depends on antenna type and RF power... Do you know what RF power and what antenna types are used on the different systems. And the different systems are used for different applications. You won't use an RFID system with 100m range for door opening systems. Klaus
Nov 12, 2017 #3 V volker@muehlhaus Advanced Member level 6 Joined Apr 11, 2014 Messages 3,201 Helped 1,072 Reputation 2,148 Reaction score 1,144 Trophy points 1,393 Activity points 20,331 Re: Question on rfid range for deiferent frequncies Low frequency RFID "antennas" are actually coupled coils and use inductive coupling in the near field.
Re: Question on rfid range for deiferent frequncies Low frequency RFID "antennas" are actually coupled coils and use inductive coupling in the near field.