Straight wedge absorber geometry optimization for normal and oblique incidence

Laura Pometcu (1) , Ala Sharaiha (1) , Ratiba Benzerga (1) , Philippe Pouliguen (2)

1 IETR - Institut d'Électronique et des Technologies du numéRique
2 DGA MRIS - DGA Mission Recherche et Innovation Scientifique

—This paper presents a topology for improving the performance of straight wedge absorbing materials at oblique angles of incidence. The optimization process is based on a genetic algorithm and allows one to obtain a low reflection coefficient within a wide band of frequencies. We investigate the performance by comparison between the straight wedge absorber and the optimized wedge absorber. These wedge absorbers were simulated in the CST Microwaves Studio software, using a polymer foam material.

Mots clés: optimization algorithm; —straight wedge absorber; polymer foam; oblique incidence; normal incidence; anechoic chamber

Domaines: Interface homme-machine [cs.HC]; Sciences de l'ingénieur [physics]

Laura Pometcu, Ala Sharaiha, Ratiba Benzerga, Philippe Pouliguen. Straight wedge absorber geometry optimization for normal and oblique incidence. Loughborough Antenna and Propagation conference, Nov 2014, Loughborough, United Kingdom. pp.633 - 636, ⟨10.1109/LAPC.2014.6996472⟩. ⟨hal-01104332⟩