https://doi.org/10.1051/epjap:1999240
Numerical study of bandwidth of radar absorbers
Scientific Center for Applied Problems in Electrodynamics (SCAPE),
Russian Academy of Sciences,
13/19 Izhorskaya ul., Moscow 127412, Russia
Corresponding author: rozanov@eldyn.msk.ru
Received:
15
February
1999
Revised:
7
July
1999
Accepted:
14
September
1999
Published online: 15 September 1999
A numerical study is made of the bandwidth to thickness ratio of radar absorbers for the suppression of normally incident waves. The study deals with single- and multi-layer dielectric absorbers, in which the frequency dispersion of the permittivity is allowed for. Analysis of the results permits obtaining a simple empirical relationship between thickness, bandwidth, and reflectance level of some specific kinds of absorbers. Essential features of different designs of dielectric radar absorbers are revealed and discussed.
PACS: 78.20.Ci – Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity) / 78.66.Sq – Composite materials / 78.70.-g – Interactions of particles and radiation with matter
© EDP Sciences, 1999
