How Does a Hall Sensor Enhance RFID Tag Communication?

  • Thread starter Thread starter Moe123
  • Start date Start date
  • Tags Tags
    Function
AI Thread Summary
A Hall sensor enhances RFID tag communication by detecting the receipt of a beacon signal from an RF source. It is positioned near the tag's antenna, which resonates specifically with the beacon signal, generating a micro-signal. This micro-signal is used to switch the code responsive circuit (CRS) from one position to another, enabling tag-tag communication. The Hall sensor functions by sensing the electromagnetic field generated by the RF signals, facilitating the response of the RFID tag. A diagram or schematic would further clarify the system's operation and the Hall sensor's role.
Moe123
Messages
14
Reaction score
0
Ok, if I have a transceiver circuit comprised of a RFID(with antenna-resonating to RFS) that has the capability of tag-tag communication and the RFID responds to a beacon signal from a RF source by transmitting in response to the beacon signal 2 (alive signal). Its electrically connected so as to provide a gate bias or other signal to the code responsive switch(CRS). A hall sensor(code responsive circuit) is disposed adjacent the tag’s antenna in order to sense receipt of the beacon signal. Only the beacon signal will resonate in the antenna which provides a micro-signal that can be sensed to the gate input in order to switch the CRS from one position to another in response of beacon signal
Ok...what is the hall sensor function here? I am assuming the RF are generating an electromagnetic/magnetic field
Thank you in advance
 
Engineering news on Phys.org
Moe123 said:
Ok, if I have a transceiver circuit comprised of a RFID(with antenna-resonating to RFS) that has the capability of tag-tag communication and the RFID responds to a beacon signal from a RF source by transmitting in response to the beacon signal 2 (alive signal). Its electrically connected so as to provide a gate bias or other signal to the code responsive switch(CRS). A hall sensor(code responsive circuit) is disposed adjacent the tag’s antenna in order to sense receipt of the beacon signal. Only the beacon signal will resonate in the antenna which provides a micro-signal that can be sensed to the gate input in order to switch the CRS from one position to another in response of beacon signal
Ok...what is the hall sensor function here? I am assuming the RF are generating an electromagnetic/magnetic field
Thank you in advance

Can you post a diagram and schematic? That will help us in understanding your system and question. :smile:
 
Thread 'Weird near-field phenomenon I get in my EM simulation'
I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
Back
Top