Protection of radar systems against nearby or direct lightning strokes

The paper deals with the characteristics of a lightning protection system (LPS) for a fixed and a mobile radars. The LPS design includes external (LPE) and internal (LPI) system as well as protection measures against lightning electromagnetic pulse (LEMP) of internal electrical and electronic systems (i.e. air terminations, down conductors, earthing arrangement, internal equipotential bonding. cable routing and shielding and surge protection) according to the IEC 62305 standard series. By means of computer simulations the most critical parameters have been evaluated and the results have been taken into account both in the electrical design of the LPS and in the selection of some radar components.