How to use 13,56MHz RFID (ISO14443) in medium-range?

[Tuppe]

How to use 13,56MHz RFID (ISO14443A) in medium-range?

Hello RF guys!

I'm designing a RFID reader, that must be able read 14443A tags(active preferrably) from incoming car. So the read range must be 5-10m.
The problem is, that 13.56 isn't designed for this application.

Should I just increase the data transmission range using 433MHz transmitters(very costly), or is it somehow possible to get away with using just 13.56MHz?

The reader(+antenna) can be very large(stationary installation) and the active tag can relatively large, powered by car 12V for example.

I've been scrathing my head with this problem for weeks and cannot find any solution. I cannot find any active 13.56MHz tags at all!
I can find 10-15cm antennas, but they only promise max. 10cm read ranges.

I need to combine active tag with the big antenna.

If it's not possbile with 13,56MHz, I'd like to hear some suggestions for range extension. My current solution is the regular 433Mhz transmitter.

Thanks for reading!

 

[FvM]

For larger range, you would preferably use ISO/IEC 15693 instead of 14443. It's specified Hmin is only on-tenth of th eformer standard. Achieving ranges over 2 or 3 m will require large coupler coils and high reader power. In so far it's questionable tha the solution will be less costly than UHF radio. It has it's advantages if you have a large number of cheap tags with a few readers, e.g. to identify products in an assembly line.

Active tags are used in the NFC standard, but the designed field strength isn't lower than for 14443.

 

[Tuppe]

For larger range, you would preferably use ISO/IEC 15693 instead of 14443. It's specified Hmin is only on-tenth of th eformer standard. Achieving ranges over 2 or 3 m will require large coupler coils and high reader power. In so far it's questionable tha the solution will be less costly than UHF radio. It has it's advantages if you have a large number of cheap tags with a few readers, e.g. to identify products in an assembly line.

Active tags are used in the NFC standard, but the designed field strength isn't lower than for 14443.

Okay, thanks for the insight. I could maybe use 15693 protocol, but I cannot find any active tags or waterproof solution within that protocol either.
Currently my solution would be that each car would have a RFID "dock" where you can insert the card. The dock device will read the card and send the UID over 433MHz.
Would you say that this is a feasible solution to this problem? I'd need to have an RFID reader in each dock, and 433MHz transmitter.