vioft2nntf2t|tblJournal|Abstract_paper|0xf4ff91890b0000001b83010001000400 Modern fighter aircrafts, ships, missiles etc need to be very low Radar Cross Section (RCS) designs, to avoid detection by hostile radars. Hence accurate prediction of RCS of complex objects like aircrafts is essential to meet this requirement. A simple and efficient numerical procedure for treating problems of wide band RCS prediction Perfect Electric Conductor (PEC) objects is developed using Method of Moment (MoM). Implementation of MoM for prediction of RCS involves solving Electric Field Integral Equation (EFIE) for electric current using the vector and scalar potential solutions, which satisfy the boundary condition that the tangential electric field at the boundary of the PEC body is zero. For numerical purposes, the objects are modeled using planar triangular surfaces patches. Set of special sub-domain type basis functions are defined on pairs of adjacent triangular patches. These basis functions yield a current representation free of line or point charges at sub-domain boundaries. Once the current distribution is obtained, dipole model is used to find Scattering field in free space. RCS can be calculated from the scattered and incident fields. Numerical results for a square plate, a cube, and a sphere are presented over a bandwidth.
M. Madheswaran1 and P. Suresh Kumar2
Muthayammal Engineering College, India
Dipole Model, Method of Moment (MoM), Perfectly Electric
Conductor (PEC), Radar Cross Section (RCS), Triangular Patch
Model
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| Published By :
ICTACT
Published In :
ICTACT Journal on Communication Technology
( Volume: 3 , Issue: 2 , Pages: 536-541 )
Date of Publication :
June 2012
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114
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