mber of turns is 3 to 10 turns.
The RFID tag-reading card distance is not only related to itself, but also has a lot to do with its environment. When using inductively coupled RFID systems, it is often required that a reader or electronic tag antenna be mounted directly on a metl surface. However, it is not possible to install a magnetic antenna directly on a metl surface.
RFID electronic label is often used in metl environment. When RFID electronic label is close to metl, because the metl is st