Title :
Development, characterization and optimization of dielectric radar absorbent materials as flexible sheets for use at X-band
Author :
de C.Folgueras, L. ; Alves, Mauro A. ; Rezende, Mirabel C.
Author_Institution :
Inst. Aeronaut. e Espaco, Sao Jose dos Campos
fDate :
Oct. 29 2007-Nov. 1 2007
Abstract :
This paper presents a study of the dielectric properties of radar absorbent materials (RAMs) for use at X- band. Two different RAMs with different conductivities were prepared from the conducting polymer polyaniline. The RAMs were characterized with respect to their absorption and reflectivity to electromagnetic waves, and electric permittivity. The evaluated materials attenuated the energy of the incident radiation from 30 to 65%. A hybrid optimization algorithm (HA) was used to find the optimal parameters for these materials for processing. The results obtained by the HA are in good agreement with experimental measurements.
Keywords :
absorbing media; conducting polymers; dielectric materials; X-band; conducting polymer polyaniline; dielectric absorbing materials; dielectric radar absorbent materials; electric permittivity; flexible sheets; hybrid optimization algorithm; Conducting materials; Conductivity; Dielectric materials; Electromagnetic scattering; Electromagnetic wave absorption; Permittivity; Polymers; Radar; Reflectivity; Sheet materials; Absorbing media; conducting polymers; dielectric absorbing material; dielectric materials; optimization methods; simulation;
Conference_Titel :
Microwave and Optoelectronics Conference, 2007. IMOC 2007. SBMO/IEEE MTT-S International
Conference_Location :
Brazil
Print_ISBN :
978-1-4244-0660-9
Electronic_ISBN :
978-1-4244-0661-6
DOI :
10.1109/IMOC.2007.4404311
