Based on a Ferrite Core, Neosid Produces Robust High Performance Transponders with Smallest Construction Form

Articles | By Neosid Pemetzrieder | 10 June 2014

Miniature Transponders

Four Millimeters for High Performance

The company Neosid, founded more than 80 years ago, brought in its experience in handling ferrites and inductances into the development of RFID transponders with the smallest dimensions in 2012. „Our ferrite know how is the ideal basis for HF transponders providing high performance in spite of minimal dimensions – also and especially when integrated into metal“, reports Neosid Managing Director Joachim Lueg-Althoff in dialogue with „RFID im Blick“. „Lately, the use of Neosid transponders in the RUD-ID-System has been demonstrating the benefits of construction form and performance“, adds Neosid Sales Director Yilmaz Benzer.

Joachim Lueg-Althoff and Yilmaz Benzer, Neosid, in an interview with Jan Phillip Denkers, „RFID im Blick“

The sling manufacturer uses transponders by Neosid for an identification and inspection documentation system for chains and slings. Were the requirements, set by RUD Ketten, „new territory“ for transponder development?

Joachim Lueg-AlthoffJoachim Lueg-AlthoffJoachim Lueg-Althoff: The transponder used by RUD Ketten consists of three components: an inlay – the actual transponder - , the housing, and the encapsulation that fixes the inlay inside the housing. We only developed the housing specifically for RUD Ketten. „New territory“ was the development of the inlay itself four years ago. Therefore, we used our know how in producing electronic construction parts, based on ferrites. Thus, it was possible to build a transponder measuring only four millimeters, which is, however, even reliably detectable when flat-mounted in metal.

„The know how of our core business – electronic components and ferrite construction parts – was included in the Neosid miniature transponders. Robust and high performance RFID transponders are the result.“

The RUD-ID-System is used by industrial companies, some of which use several thousands of slings that are subject to inspection. How does Neosid ensure durable transponder function for this purpose?

Yilmaz BenzerYilmaz BenzerYilmaz Benzer: Our experience in handling ferrites forms the basis. Using ferrite for the transponder core allows for optimal tag positioning. Furthermore, the Ferrite works as multiplier for inductivity, so the antenna needs less windings while still high read ranges are possible. Without the use of ferrite, no fully automated transponder production would be possible. This is the only way, constant product quality – in total we conduct three 100 percent tests during production – can be realized. Manufacturing transponders with our construction shape is not only very complex but also always bears the risk of intolerable quality fluctuations.

„The fully automated production is the key to produce high quality, reliable transponders with the smallest construction shape.“

RUD Ketten will use a high number of transponders. For what other applications are Neosid transponders suitable and how is the RFID business of Neosid developing?

Joachim Lueg-Althoff: The use of our transponders in the field of surgical instruments as well as tool construction and management bears high potential. Features, such as temperature resistance and high read ranges in spite of minimal construction size are highly requested for these purposes. Abroad, the transponders are already integrated in series production and in Germany many projects are about to be rolled out. At the moment, our RFID activities make about ten percent of the overall sales and the trend is rising, considering the number of requests and the increasing number of projects.

Is a diameter of four millimeters the limit of what is feasible or can further miniaturization be realized?

Yilmaz Benzer: Smaller construction shapes are definitely within the realms of what is possible. From our present point of view, however, four millimeters construction size are the perfect compromise between robustness, reliability, and achievable read range when integrated into metal. At the moment we do not see any need for even smaller construction shapes. What is more, we would probably have to make sacrifices in terms of functionality. This applies to the achieved read ranges and also to temperature resistance. When using the pure inlay, the diameter is already reduced to three millimeters. Many projects which are to be rolled out shortly worldwide in the field of series production of hospital equipment and instruments show the potential of the current construction shape which has not been exploited by far, yet.

Last modified on Tuesday, 10 June 2014 10:17
RFID & Wireless IoT tomorrow 2019
RFID and Wireless IoT tomorrow 2019Europe's largest congress for RFID & Wireless IoT
October 29. - 30. 2019
Darmstadtium, Darmstadt near Frankfurt, Europe
Conference | Exhibition | Live demos
We look forward to meet you!