| 摘要 |
An RFID device excluding influence of surroundings and a method for manufacturing the same are provided to mix inorganic material like ferrite or carbon black with synthetic resin when a case is manufactured such that the RFID device is normally operated without being influenced by surroundings like metal, liquid or dielectric substance. An RFID device includes an upper case(110), an RFID tag(120) and a lower case(130). The upper case and the lower case are manufactured by injection molding of polymer composite for preventing electronic waves from being absorbed or shielded, preventing loss of a dielectric constant and considering chemical resistance, thermal deformation temperature, and weather resistance wherein the polymer composite uses properly polyphenylene sulfide or liquid crystal polymer. The RFID tag is passive type one used in a UHF band without being influenced by surroundings. The RFID tag uses a varied dipole type antenna and an EPC C1 Gen2 type RFID chip(125) operated in the UHF band. |
