expand the range of nfc reader

hello friends ;

Now i am working on pn532 nfc shield of adafruit. i also read and write the ntag213 using arduino.

but its read distance is only 4-5 cm.

I want to expand range of 30-40 cm and is it possible for nfc .

i can try last few week but still i dint get any output.

if you have any idae about it plz help me ...

The range is normally a function of the reader. If you want more range, you will need a different reader.

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weedpharma:
The range is normally a function of the reader. If you want more range, you will need a different reader.

For example, the kind you see at the exits of shops in order to detect stolen items.

http://shop.copperspiralrfid.com/?91,rfid-eas-anti-theft-gates

mikb55:
For example, the kind you see at the exits of shops in order to detect stolen items.

That suggestion may be rather confusing. That is a totally different system in all aspects.

The answer is that the design of these readers is very tight, and it is not a matter of simply adding something on. If you want a reader with a different range, you basically need to go out and buy one that has the specifications you want.

The range of NFC (Near FIeld COmmunication) is deliberately small.

Only then it can be used for e.g. financial transactions.

robtillaart:
The range of NFC (Near FIeld COmmunication) is deliberately small.

Only then it can be used for e.g. financial transactions.

Maybe OP wants to arrange his own "financial transactions" on a mass scale. >:(

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