Electromagnetic Considerations of a Spatial Modal Filter for Suppression of Non-TEM Modes in the Transmission-Line Type of EMP Simulators

摘要

The suppression or damping of non-TEM modes in the transmission-line type of EMP simulator may be accomplished by introducing a spatial modal filter (SMF), initially in the output conical section of the simulator. This report deals with the electromagnetic considerations of the SMF which is essentially decoupled from the principal TEM mode.