These open TEM-cells are well suited for immunity testing of small objects according to European (CE) and automotive standards (SAE J1113-25) or for biological experiments. The advantage of these TEM-cells is that they are open and it is very easy to control the functions of the EUT (Equipment Under Test). The applications are for instance the immunity testing of watches, pagers, telephones or PCB’s.

In comparison with other closed TEM-cells, the price is low. The field decreases rapidly outside the open TEM-cells (approx. 33 dB at 1 meter) and it is therefore possible to use an open TEM-cell in ordinary facilities. Another interesting application is the calibration of field probes as the generated field inside the TEM-cell is very exact. TEM-cells are the most precise structures for field calibrations.