Our product range of NeoTAG® HF RFID transponders/ RFID chips is constantly being expanded and new transponder versions are regularly added. In connection with the use of our transponders, we have compiled a large amount of background information on mounting, function, design, operating behaviour, etc. due to the many applications in which the products are used. As a supplement to our Product Information HF RFID Transponder data sheet, this article contains further technical explanations and application-supporting information.
For common industrial metals and alloys, we have determined the influence to the resonance frequency of the transponder by laboratory tests:
Resonance frequency fRES
|Resonance frequency fRES|
|Operating frequency fB|
|Aluminium||Al||-2.0 MHz||11.6 MHz||13.60 MHz|
|Iron||Fe||-1.0 MHz||12.6 MHz||13.60 MHz|
|Brassg||CuZn||-1.5 MHz||12.1 MHz||13.60 MHz|
|Stainless steel*1||e.g. X2CrNi12||-600 kHz||13.1 MHz||13.60 MHz|
Table 1: Frequency behaviour in different metallic environments
*1Our NeoTAG® HF RFID transponders are pre-tuned for use in stainless steel!
Due to the broadband design of the transponder and usually also of the reader antennas used, different environmental materials lead in practice to slight deviations in the reading range. In order to achieve an optimal reading range, measurements of the frequency tuning should be carried out in the target application. The resulting application-specific pre-tuning of the transponder will lead to the optimum operating resonance frequency in the application.
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