Using a Non-Physical Absorber Termination for the Analysis of RCS Pylons Using a Higher Order Basis Function Method Of Moments

Authors: Vince Rodriguez
Publication: EuCAP 2023
Copyright Owner: IEEE

Low back-scattering pylons are a typical feature of RCS measurement ranges [1], these can achieve levels between -25 and -45 dBsm [2]. The measurement of the RCS level from a pylon is a difficult task. The Measurement requires adding a low RCS target to hide the top edge of the pylon. In this paper a numerical technique is explored to estimate the RCS of a pylon using a high order basis function method of moments technique (HOBF-MoM). The paper explores a technique to hide the top and bottom features of the pylon using a non-physical lossy material to get the RCS from the main pylon structure. The effects of the structure on the RCS of standardized targets like spheres is also explored.

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