Technology Overview

RFMicron technology, which includes the Chameleon™ Engine, establishes the Magnus® S family of products as the Industry’s first passive, wireless, single-chip sensor solution.

Magnus® S ICs feature RFMicron’s patented Chameleon technology, Sensor Access, and On-Chip Receive Signal Strength Indicator (RSSI). Chameleon, the first truly adaptive RFID front end, automatically adjusts the input impedance of the IC to optimally tune the tag to varying frequencies and environmental conditions.

Sensor Access gives the user access to the Chameleon self-tuning circuit results as a 5-bit Sensor Code using a standard EPC Gen 2 READ command. The Sensor Code provides a direct measure of the antenna’s impedance. Based on the chosen antenna design and the effect of the environment on the impedance, changes in the Sensor Code indicate a change in the environment.

On-Chip RSSI, which indicates the strength of the signal sent from the sensor to an RFID reader, is another capability unique to RFMicron. The On-Chip RSSI is a 5-bit digital output that can be read by the reader using standard EPC Gen2 commands and can be used as a data resource providing a direct measurement of the signal strength seen by the tag. This feature is useful in development, characterization and system installation to manage the response of large tag deployments.



Microsoft PowerPoint - Sensor Slides 2013_Lori_Tatum_WEB_Order


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