Electro Magnetic Compatibility

EMC covers the electromagnetic coupling in two ways:
Influence from or to other systems:
The 1st includes immunity for electromagnetic RF-fields, electrostatic discharge, magnetic pulses from lightning (LEMP), and voltage-spikes and -bursts at (power-) cables.
The 2nd includes emission of radio-signals by radiation or by unwanted currents in cables

One of the design challenges in switching power electronics is handling the RF-Emission below the EMC-limits. Essential for EMC-engineering are means for measuring the RF-radiation, and finding and understanding the precise origin of it.

For accurate measuring of real RF-emission directional antennas are needed in a large free space, depending on the wavelength. We can do these measurements at a local test-facility.
However, most EMC-problems do occur at frequencies corresponding to wavelengths much larger than the size of the test-object.

In most of these cases the emission is caused by common-mode RF-currents in cables connected the object and can be measured via the current-probes is these cables.
In other cases, small current loops on the PCB, in wiring, or leaks in shielding, can create a local magnetic field which will generate distant electromagnetic radiation.

Rebix has the means and experience for measuring these local fields, from which the distant radiation and emission can be calculated, with an accuracy not much less than the conventional method.
In our design process these RF-currents and local fields will be minimized till below the limits.