The transversal electromagnetic mode which can developed in the DTEM cell, provides the opportunity
for doing EMC testing inside the cell. In principle, the DTEM cell is a coaxial line expanding rectangularly
and with planar septum. The geometrical dimensions having a line impedance of Z = 50 Ω. At the end,
the line is matched by a 50 Ω termination. Typical for this cell is the low power request for high field
strength values.