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Stealth technology is a crucial pre-requisite in the combat zone,
where swiftness, surprise and initiative are the decisive elements
for survivability. The supreme goal here is to reduce the
visibility of military vehicles by shaping, application of radar
absorbing materials, passive cancellation, active cancellation etc.
With respect to multilayered radar absorbing structures (RAS), this
book presents an efficient algorithm based on particle swarm
optimization (PSO), for the material selection as well as
optimization of thickness of multilayered RAS models considering
both normal as well as oblique incidence cases. It includes a
thorough overview of the theoretical background required for the
analysis of multilayered RAS as well as the step-by-step procedure
for the implementation of PSO-based algorithm. The accuracy and
computational efficiency of the indigenously developed code is also
clearly established using relevant validations and case studies.
FEATURES Provides step-by-step procedure for the implementation of
particle swarm optimization (PSO) based algorithm in the context of
multilayered radar absorbing structures (RAS) design Helps to
understand the EM design, analysis and optimization of multilayered
RAS Describes the theoretical background required for the analysis
of multilayered RAS Illustrates in detail the theoretical
formulation supported by intuitive ray diagrams and comprehensive
flowcharts to implement the algorithm with ease Includes elaborate
validations and case studies This book will serve as a valuable
resource for students, researchers, scientists, and engineers
involved in the electromagnetic design and development of
multi-layered radar absorbing structures.
Stealth technology is a crucial pre-requisite in the combat zone,
where swiftness, surprise and initiative are the decisive elements
for survivability. The supreme goal here is to reduce the
visibility of military vehicles by shaping, application of radar
absorbing materials, passive cancellation, active cancellation etc.
With respect to multilayered radar absorbing structures (RAS), this
book presents an efficient algorithm based on particle swarm
optimization (PSO), for the material selection as well as
optimization of thickness of multilayered RAS models considering
both normal as well as oblique incidence cases. It includes a
thorough overview of the theoretical background required for the
analysis of multilayered RAS as well as the step-by-step procedure
for the implementation of PSO-based algorithm. The accuracy and
computational efficiency of the indigenously developed code is also
clearly established using relevant validations and case studies.
FEATURES Provides step-by-step procedure for the implementation of
particle swarm optimization (PSO) based algorithm in the context of
multilayered radar absorbing structures (RAS) design Helps to
understand the EM design, analysis and optimization of multilayered
RAS Describes the theoretical background required for the analysis
of multilayered RAS Illustrates in detail the theoretical
formulation supported by intuitive ray diagrams and comprehensive
flowcharts to implement the algorithm with ease Includes elaborate
validations and case studies This book will serve as a valuable
resource for students, researchers, scientists, and engineers
involved in the electromagnetic design and development of
multi-layered radar absorbing structures.
This book reports on a new radome wall configuration based on an
inhomogeneous planar layer, which overcomes current fabrication
constraints in radome design and yields improved electromagnetic
(EM) characteristics. The book also includes a detailed description
of radomes and antenna-radome interaction studies for different
radome wall configurations. The radome wall was designed using the
equivalent transmission line method (EQTLM), since it requires less
computational speed and provides accurate results. In order to
substantiate the accuracy of the results obtained using EQTLM, the
simulated results based on full wave methods like CST Microwave
Studio Suite are also included. The EM performance analysis of the
antenna-radome system for two radome shapes, tangent ogive (for
airborne applications) and hemispherical (for ground-based
applications), was performed using Geometric Optics Method in
conjunction with the Aperture Integration Method. To show the
efficacy of the new design, a comparison of performance
characteristics between the novel radome and conventional wall
configurations is also included. Lastly, it presents antenna-radome
interaction studies for various aperture distributions. The book
offers a unique resource for all researchers working in the area of
microwave radomes.
This book presents a novel methodology for the computation of RCS
of metallic structures using a parallelized version of NEC in
conjunction with a finite element preprocessor which has been
strategically incorporated for simplifying geometry modelling
catering to NEC guidelines. It includes a thorough overview of the
theoretical background of NEC including all relevant aspects of
formulation and modelling. The revised methodology including all
the required steps and details is discussed elaborately along with
case studies and validations. This book will serve as a valuable
resource for students, researchers, scientists, and engineers
working in the field of RCS predictions and measurements.
This book presents a review of techniques based on waveguide
systems, striplines, freespace systems and more, discussing the
salient features of each method in detail. Since metamaterials are
typically inhomogeneous and anisotropic, the experimental
techniques for electromagnetic (EM) material characterization of
metamaterial structures need to tackle several challenges.
Furthermore, the modes supported by metamaterial structures are
extremely sensitive to external perturbations. As such the
measurement fixtures for EM material characterization have to be
modified to account for such effects. The book provides a valuable
resource for researchers working in the field of metamaterials
This SpringerBrief details various techniques employed for
enhancing the transmission efficiency of radomes by modifying the
radome wall configurations. These broadbanding techniques are based
on inclusion of metallic wire-grids/meshes in the radomewalls,
inclusion of metallic strip-gratings in the radome layers,
inclusion of FSS based structures in between the radome layers and
the use of inhomogeneous dielectric structures as radome wall. The
volume provides detailed chapter-wise explanation of the design
aspects and discusses the performance analysis of the modified
radome wall configurations. It will be of interest to researchers,
academicians and students working in the field of radomes.
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