Icraft was Radientum’s first client when operations began in December 2015. Radientum and Icraft have collaborated on several client projects wherein Radientum has been involved as an antenna integration and testing partner. Icraft has primarily supplied telemetry devices in these projects, where antenna solutions are working within the 2,4 GHz ISM frequency band.
In one of the first joint efforts, the telemetry devices were being installed within diesel motors of a large well-known manufacturer. As a good example of use in a harsh environment, with metal very close to the antenna, the device was placed inside a cylinder of a motor being used at a client’s premises for research and development purposes.
Arto Kolinummi, CEO of Icraft, stated that: “Radientum developed an antenna solution that not only worked well when placed close to the metal structure, but benefitted from it. Developing such solution without their antenna simulations would have meant several rounds of prototyping including the casting of metal parts, which would have been extremely costly.”
In another example, Icraft has supplied their clients with telemetry devices to monitor grinding mill composition (e.g., proper ratio of rubble and water). The information is sent utilising 2,4 GHz wireless transceivers via gateway receivers that forward the information to the host. In this application, the device is covered with resin, encasing the antenna within a moulding; as is often used with ATEX devices.
“Due to our simulation-driven approach, we are able to develop antenna solutions to a moulded device only in few days. Antenna simulations are essential to overcome the challenges because antenna optimisation in a laboratory is very hard due to the moulding,” asserted Mikko Parkkila, CMO of Radientum.
Moulding prevents fast iteration of antenna trace and matching components. An unmoulded device will have totally different behaviour compared to moulded device, and cannot be used for tuning without extensive correlation studies. At the final stage of development, antennas are tested at Icraft after the final castings of resins to make sure the connection works perfectly.
“Without Radientum, several sets of prototypes would have been needed to be moulded after each other to tune the antenna. It would lead to weeks of R&D work,” said Mr. Kolinummi.
Icraft offers subcontracting and design. Currently they employ seven persons with a long experience in product development. Besides electronics, their projects often contain the design of firmware and software. Small quantity manufacturing and testing of the designed electronics can also be done. Icraft is experienced in the design of challenging analog electronics for various applications. Measurement devices have been developed for medical use, testing laboratories and for industrial applications. Icraft’s organisation enables very flexible and fast project schedules with competitive prices. Prototype design, implementation and testing is done in-house as much as possible, to reduce uncertainty and delays. www.icraft.fi