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For your last question, there are hordes of people trying to either reduce the price of the hardware or find new uses for the technology.
RFID is a transponder of low cost that is placed either in a plastic card or on some object. A reader interacts with it and reads a unique binary number stored in it. From this information and a previously stored data base different things happen. One is that a building door or gate of a motor vehicle parking area is unlocked or automatically opened. Another is that a data base inventory control system records that a product is in a shipping box or on the shelf at the store. The whole idea is to reduce human labor in keeping track of objects, or people or giving permission for access to a physical area.
historically this technology has been used for several decades. One early use was to keep track of rail road rolling stock. Another original use was electronic keys for electronic door locks.
shoping mall if you have seen items are tagged with perticular security tag which they remove when you purchase the item that contains the rfid so goods can be tracked within the store.
Let me recommend the following book :
"RFID Handbook: Fundamentals and Applications in Contactless Smart Cards and Identification" by Klaus Finkenzeller.
(hxxp://)
Antenna topologies and frequency bands are presented.
Some indutrial RFID main actors are
Texas Instrument, Oberthur Card Systems or Gemplus.
I have seen a book of RFID Technology by Klaus Finkenaeller, a German. I have heared lots of factories of RFID, but I have not seen the RFID. Many people want to do something about it.
RFID is radio frequency identification. There is a tag with the name of ESD (electronic surveillance detection) which is very cheap for goods identification.
The price of rfid tag depends 1- security 2- capacity 3- range of rf 4- cpu ,....
but ESD tags are the best things for cheap goods.
Added after 19 minutes:
I forgot,
there are a lot of books for RFID fields in edaboard
1- RFID Handbook: Fundamentals and Applications in Contactless Smart Cards and Identification,
Second Edition
Klaus Finkenzeller
2-RFID Field Guide: Deploying Radio Frequency Identification Systems
AUTHOR: Manish Bhuptani, Shahram Moradpour
FORMAT: Chm
PAGES: 288
i read the book by Finkenzeller... well it gives the main ideas but for designing its not a good book.
who knows a book that is describing the antenna and getting matched to the chip.
what kind of printed antenna is preferred, i have seen only meanderes dipoles, what else is possible?
how difficult is the adaption to higher frequencys, most descriptions are about the 13.56 MHz, whta about the frequency 2.45 GHz or higher.
I have to say that there are not a lot of such articles. You may find some relevant papers from IEEE. I knew that there is a paper from Intermac talking about tag antenna design and matching in UHF.
bibijons said:
i read the book by Finkenzeller... well it gives the main ideas but for designing its not a good book.
who knows a book that is describing the antenna and getting matched to the chip.
what kind of printed antenna is preferred, i have seen only meanderes dipoles, what else is possible?
how difficult is the adaption to higher frequencys, most descriptions are about the 13.56 MHz, whta about the frequency 2.45 GHz or higher.
Wiley - RFID.Handbook.Fundamentals.and.Applications.in.Contactless.Smart.Cards.and.Identification.Second.Edition.chm
O'Reilly - RFID.Essentials.Jan.2006.chm
Prentice Hall - Rfid Field Guide Deploying Radio Frequency Identification Systems (2005).chm
Prentice Hall - RFID.Sourcebook.Aug.2005.chm
Que - RFID.plus.Exam.Cram.May.2006.chm
RFID - Read My Chips!.pdf
Syngress - RFID.Security.Apr.2006.pdf
Wiley - For Dummies - RFID.For.Dummies.Mar.2005.pdf
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