Effect of Radar Absorbing Materials on Radar Cross-Section Reduction of Complex Targets

Abstract

Radar Cross Section (RCS) is a measure operated to describe the capability of a body to receive and then redirect the energy emitted by the omnipresent radar signal. (RCS) is affected by many factors, including target size, shape, material, radar frequency, and angle of incidence. Good design and use of stealth and radar wave scattering techniques are important in reducing the (RCS) and thus reducing the ability to detect the target. Radar-absorbent materials, as is evident from the name, the goal of this material is to absorb the energy of the incident wave and convert it into heat, thus reducing the amount of energy scattered toward the radar. The Radar Absorbent Material (RAM) technique was used to RCSR. The study revealed a decrease in the (RCS) when employing full and partial coatings of (RAM) on two types of isotropic and nanomaterials. The RCS is observed to be reduced by the partial coated body (hot-spot) RAM coating, and this decrease is comparable to that of a full coated. This results in a noteworthy reduction of almost 80% in the weight and volume of RAM and, consequently, in the cost of the RAM coating. Due to the difficulty of analytically methods in dealing with complex bodies, we resorted to using the High-Frequency Structure Simulator (HFSS).