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Electromagnetic pulses are fields of energy that they can damage electrical and electronic circuits at once. New technology of microelectronic circuits is sensitive to interference power. An intentional or inadvertent risk and unforeseen create irreparable damages, so that it is important to investigate electromagnetic interference from viewpoint: generation source, the effectiveness on?? electronic...
One of the methods that are used for increasing accelerator force of projectile in the railgun is the increasing of inductance gradient. Essentially, the inductance gradient is determined by current density in rails and projectile. If we change geometry of the rail, the current density and inductance gradient will be changed. One of the factors that restricts variation domain of rails geometry is...
Increase of inductance gradient is one of the most common methods for increasing applied force to projectile. Increase of inductance gradient is reachable by using augmented rails. In the first section of this paper, after definition of problem and electromagnetic equations, effect of variation of rails dimension and distance between rails on inductance gradient, self inductance and mutual inductance...
One of the common methods for protection against HPM is using from conductive shield. In order to evaluation of SE (Shielding Effectiveness), a desired electromagnetic environment must be provided. In this paper, we use from RC (Reverberation Chamber) for making electromagnetic environment. Before SE computation we have considered different polarization of transmission antenna and effect of QRD (Quadratic...
One of the methods that are used for increasing accelerator force of projectile in the railgun is the increasing of inductance gradient. Essentially the inductance gradient is determined by current density in rails and projectile. If we change geometry of the rail, the current density and inductance gradient will be changed. One of the factors that restricts variation domain of rails geometry is the...
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