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What is the influence of the materials in which the NeoTAG® transponder is inserted?

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.

 

Environments other than air influence the inductance of the transponder antenna coil and thus the operating resonance frequency due to altered magnetic conductivity. With plastics or other non-ferromagnetic materials, this is generally not critical.  

In a metallic environment, the field strength in the direction of the reading antenna is reduced from 100 % to approx. 20 %! This influence is shown quite well in the following simulation pictures:

11_magnetfeldstaerke_neotag_in_luft
Picture 11: Magnetic field strength of NeoTAG® in air

11-12_magnetfeldstaerke_neotag_skala

12_magnetfeldstaerke-neotag_in_metall
Picture 12: Magnetic field strength of NeoTAG® in metal

 

Metallic environments influence the operating resonance frequency differently depending on the material or alloy.

 

effect_metallic-environments
Picture 13: Effect of metallic environments to the resonance frequency of the transponder

 

Tell us your requirements - we will develop the right solution for you.

Have we aroused your interest? Then contact us about RFID transponders for different frequency ranges. Customised solutions are our speciality. We will be happy to support you with our know-how to realise your product development. 

 

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PDF: Technical Information NeoTag 2-0922