Re: RFID reader design

Alchemist wrote:

I am trying to build a RFID reader for passive RFID tags like
http://availabletechnologies.pnl.gov/securityelectronics/rftagsdescription.stm.
These tags has got read/write range upto 10m.

My reader must be capable of reading tags at a minimum distance of 6m(
also the maximum).

I got few questions regarding this

1) Is it possible to read passive tags at a distance of 6m

2) Is it possible to build this reader.

3)What would be the size of reader

4)What would be the power requirement of this reader

5)Is it possible to detect direction and distance of RFID tag from the
reader


From my experience with 15MHz passive tags, the
reach is about the diameter of the stationary antenna.
Also note that the field must not exceed a certain
field strength.

Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net
.

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