Maker Pro
Maker Pro

RFID Technology

D

Don Stauffer

Jan 1, 1970
0
Anyone with Knowledge please share

Seeral types.

Most fascinating is active unpowered. Absorbs RF from interrogate
signal, rectifies carrier, uses to power low-power circuitry. Circuit
encodes response and transmits code back to interrogator.

Another type does carry battery or some other power, which provides a
smarter function- can send more information than simple ID code, or has
a longer range than interrogator-powered versions.

Another version is just a passive reflector with a binary function- it
either passively reflects, triggering response, or just sits there and
does not respond at all. Since these devices do not actually send an ID
number, some do not consider them RFID. These are types found in
anti-theft devices.
 
Top