TEM WAVEGUIDE ARRANGEMENT

摘要

In TEM waveguide arrangements (10) such as are used in testing the electromagnetic compatibility of electronic devices in electromagnetic fields, a plate-shaped inner conductor (4) is connected via electrically parallel-connected tubular resistors (8) to an electrically conductive, spherical rear wall (5). This rear wall (5) is electrically connected to an outer conductor (1) and grounded. Radio-frequency absorbers (6, 7) are mounted on the rear wall (5) for the purpose of absorbing TEM waves, the RF short-point absorbers (7) adjacent to the tubular resistor (8) being smaller than the remaining RF long-point absorbers (6), in order to reduce the capacitive influence of the tubular resistors (8). Identical tubular resistors (8) are arranged perpendicular to the plane of the drawing of Figure 1 in accordance with a current density distribution in such a way that they are more closely adjacent at the edge than in the middle of the inner conductor (4).