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RFID Technology

Anyone with Knowledge please share

Reply to
anthony.westmoreland
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here you probably find what you are looking for

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Best regards Roland

Reply to
Roland

Check information and links at

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Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web links and documents at 
http://www.epanorama.net/
Reply to
Tomi Holger Engdahl

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.

Reply to
Don Stauffer

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