Title:
Induced Currents due to Nearby Lightning Strike to a Mobile Radar System: an Hybrid 3D/circuit Analysis
Author(s):
G.Antonini, M.Cocchini, M.Italiani, A.Orlandi, A. Dominicis
Source:
Vol./Issue/Date:
Year:
2006
Page(s):
Keywords:
Abstract:
The presence of a lightning protection system
for mobile radar structure requires a detailed study of the
electromagnetic effects due to a nearby lightning strike.
Aim of this work is the evaluation of: the induced surface
currents on the antenna unit, the currents flowing through
the slip-ring (electro-mechanical part connecting the
rotating part of the antenna with the fixed one) and the
associated dissipated energy, the currents and voltages
across the grounding conductors connecting the different
units of the mobile radar system. A three dimensional full
wave electromagnetic analysis is performed to
characterize the induced currents on the antenna unit.
This unit is the transformed in an equivalent voltage
source. This circuit element is connected to the equivalent
circuit model of the grounding cables and rods of the other
units to compute the required electrical variables.
Document:
Reference Id:
279
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