How is RFID 2.45GHz protocol specified?

Who knows how RFID 2.45GHz protocol specified?

Or someone can share detailed ISO18000-4 ?

Could anybody explain "Passive Backscatter" tag?


too many questions, thank you in advance.


regards

look at some of d microchip manuals..
u can find der 4 free..

my dear:

There is iso-18000-4 specification, teh back scalar is about energy

influction on antenna, when you load modulation tag terminal, the tag

antenna will reflection energy from reader antenna, this phenomenon is

call back scalar, thanks




c.c.huang