RFID tag antenna for managing surgical instruments

In this paper, the change of the antenna characteristics calculated when an RFID tag mount on three positions of the surgical instrument and an RFID tag is attached with two materials of RFID tag attachment tools. The results of difference of the RFID tag positions show that the resistance and the electric field strength changes by positions. The results of difference of tag attachment tool show that the impedance changes by the material of attachment tool. In addition, the electric field strength of tag only and dielectric attachment tool is almost same. However, the electric field strength of metallic attachment tool becomes very weak. In the future, we will validate these calculated results by experiment. Furthermore, other surgical instrument will be studied.