shaikss
Full Member level 4
Hello folks,
I am newer to this RFID field but find it very interesting.
Passive tags: Since they don't have battery to power up themselves, they relies on the reader. The electromagnetic waves from the reader induce current on the antenna's tag and so tag powers up the circuitary and broadcasts its message.Reader emits the electro-magnetic waves continuously.
Now my question is : How much energy is extracted by the tag from the reader?
Will the tag recieve and use the entire energy emitted by the reader?
On what factors, energy absorbing is dependent?
If the tag absorbs some part of energy, what happens to the rest of the energy? Is it getting wasted?
Any filtering mechanism is used so that tag receives a portion of the energy?
Please throw some light and suggest some good articles regarding the same.
-shaikss
I am newer to this RFID field but find it very interesting.
Passive tags: Since they don't have battery to power up themselves, they relies on the reader. The electromagnetic waves from the reader induce current on the antenna's tag and so tag powers up the circuitary and broadcasts its message.Reader emits the electro-magnetic waves continuously.
Now my question is : How much energy is extracted by the tag from the reader?
Will the tag recieve and use the entire energy emitted by the reader?
On what factors, energy absorbing is dependent?
If the tag absorbs some part of energy, what happens to the rest of the energy? Is it getting wasted?
Any filtering mechanism is used so that tag receives a portion of the energy?
Please throw some light and suggest some good articles regarding the same.
-shaikss
