Abstract
Radar Cross Section (RCS) is a technique to identify objects through electromagnetic scattering of an incident wave. Consequently, there are techniques to reduce RCS such as passive cancelation method. This technique was applied to a metallic cylinder where a dielectric load can be identified through a gap in the middle of cylinder. In this paper we present comparisons between experimental results and simulation using Finite Difference Time Domain (FDTD) method. RCS results in the frequency domain were analyzed from 0.8 to 2 GHz using three different sizes of gap and two different materials as load. The frequency where RCS reduction occurs experimentally is close to simulated ones. Experimental results showed a disturbance due to mechanical misalignment that was analyzed. Tridimensional RCS simulations at 1 GHz for PVC and Teflon loads are presented as well.
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