TI RFID evaluation kit


by citizencoolgu
Tags: rfid
citizencoolgu
citizencoolgu is offline
#1
Mar15-11, 01:39 PM
P: 2
Hi,
I've been doing some work with a TI RFID evaluation kit and I noticed that when I place one of the tags onto metal, they don't work. These are passive tags that respond to a signal from an antenna after being charged through induction and I was just curious as to why they can't be placed directly onto metal.

Thanks.
Phys.Org News Partner Physics news on Phys.org
Physicists design quantum switches which can be activated by single photons
'Dressed' laser aimed at clouds may be key to inducing rain, lightning
Higher-order nonlinear optical processes observed using the SACLA X-ray free-electron laser
Drakkith
Drakkith is online now
#2
Mar15-11, 04:34 PM
PF Gold
Drakkith's Avatar
P: 11,042
If I had to guess, I'd say that the metal is absorbing the RF signal, or at least enough of it so that the tag isn't picking up a signal. I can't be sure though.


Register to reply

Related Discussions
RFID Project Electrical Engineering 1
RFID - Cloneing Computing & Technology 1
field as a driver for a passive circuit and antennae Electrical Engineering 3
small RFID Engineering Systems & Design 4
maximum range (RFID) can function Electrical Engineering 5