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Embed-in-metal
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Embed-on-metal can be defined as RFID transponders that are encapsulated or placed into a recessed area of a metal objects. Metal objects detune typical RFID tags causing the radio signal from the tag to be outside the targeted bandwidth that the RFID tag reader is tuned for. The embed-on-metal RFID tags are designed to compensate for the metal effect. There are several tag design methods to create these specialized transponders. The original method was to provide a spacer to shield the tag antenna from the metal creating bigger tags. New techniques focus on specialized antenna design that utilize the metal interference and signal reflection for longer read range than similar sized tags attached to non-metal objects. ”. Read-On-Metal transponders will continue to create new opportunities for users in a wide range of asset tracking and broader industrial applications. The main applications are asset tracking for tools, medical devices, bolts and metal identification tags. The technology is evolving to allow transponders to be embedded-in-metal. The capability allows manufacturers to track small metal items from cradle to grave. The main focus for RFID inside metal is tool tracking, weapon tracking, and medical device quality control. See Also
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