Straight wedge absorber geometry optimization for normal and oblique incidence

Author

Pometcu, Laura ; Sharaiha, A. ; Benzerga, Ratiba ; Pouliguen, P.

Author_Institution

Inst. of Electron. & Telecommun. of Rennes, Univ. of Rennes 1, Rennes, France

fYear

2014

fDate

10-11 Nov. 2014

Firstpage

633

Lastpage

636

Abstract

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.

Keywords

anechoic chambers (electromagnetic); computational electromagnetics; computational geometry; electromagnetic wave absorption; genetic algorithms; microwave materials; polymer foams; CST Microwaves Studio software; anechoic chambers; genetic algorithm; low reflection coefficient; microwave absorbers; normal incidence; oblique angles; oblique incidence; optimization process; polymer foam material; straight wedge absorber geometry optimization; straight wedge absorbing material performance improvement; Electric fields; Geometry; Optimization; Polymer foams; Reflection coefficient; Shape; anechoic chamber; normal incidence; oblique incidence; optimization algorithm; polymer foam; straight wedge absorber;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Conference (LAPC), 2014 Loughborough

Conference_Location

Loughborough

Type

conf

DOI

10.1109/LAPC.2014.6996472

Filename

6996472