Abstract: An electronic identification band can be tightly attached to and surrounded around operating room instruments of various types or specifications for wireless identification by appropriately trimming the length thereof and then peeling off a release paper. The electronic identification band includes a protective housing directly formed on a mounting portion of an elongated flexible substrate to encase an RFID unit therein, such that the RFID unit can be isolated from an ambient environment by a simple structure, thereby achieving the protective function and thus significantly enhancing the economic efficiency in manufacturing the electronic identification band.

Abstract: A license plate radio electronic identifier is provided. Through an isolated space defined between an RFID tag in an elongate frame of an identifier and a license plate to form a resonant cavity at a slot of a metal film antenna on the RFID tag, the metal film antenna can resonate and sense an electromagnetic wave signal reflected by the surface of the license plate through the resonant cavity. The electromagnetic wave signal of a frequency band is transmitted to a radio frequency identification chip under the action of the frequency band and the field pattern adjustment of the slot and a groove. The overall structure of the identifier serves as radio identification for a vehicle. The identifier is resistant to a metal interference and capable of long distance reading and can be put into mass production and is cost-effective.