Abstract: A broad-band EMP surge diverter in a coaxial line with a waveguide (20) placed in an outer conductor (10) and electrically connected via a short-circuit link (24) to the inner conductor (30) of the coaxial line, whereby sections of conductor (31, 32, 33, 34, 35) of corresponding wave impedance in the coaxial line give rise to a frequency band of substantial band width.

Abstract: The invention concerns an de-coupled EMP-charge eliminator device in a co-axial cable, with charge eliminator component (28) in electric contact with conductor (24) leading to the internal conductor of the co-axial lead (30), and with a housing (20) attached to an external conductor (10), whereby a concentrated capacitor (41) is inserted, in parallel, between housing (20) and conductor (24), and that this becomes, via the capacitance of the capacitor (41), a RF-short circuit breaker so that conductor (24) acts as a lamda/4 shortcircuit conductor.

Abstract: An electro-magnetic pulse filter which can be used simultaneously for a plurality of frequency bands includes a housing (20) mounted in the outer conductor (10) and a .lambda./4 short-circuiting conductor (24), which is connected in an electrically conductive fashion to the inner conductor of a coaxial line (30) and is connected in an electrically conductive fashion to the end face of a housing (20). Arranged between the housing (20) and the short-circuiting conductor (24) is at least one sleeve (25) which is connected to the latter in a conductive fashion. The length of the short-circuiting line (24) corresponds to the .lambda./4 length of the lowest frequency band transmitted. Considered together, the sleeves (25, 26) produce a number of cavity resonators which are connected in series and are tuned with their length to various midband frequencies.