Dependent Scattering Properties of Woven Fibrous Insulations for Normal Incidence

1995 ◽  
Vol 117 (1) ◽  
pp. 160-166 ◽  
Author(s):  
Sunil Kumar ◽  
S. M. White
Keyword(s):  
Electromagnetic Wave ◽  
Plane Electromagnetic Wave ◽  
Normal Incidence ◽  
Woven Fabrics ◽  
Fibrous Materials ◽  
Parallel Fibers ◽  
Closed Form Solutions ◽  
Incident Plane ◽  
Additional Interaction ◽  
The Difference

The scattering properties of woven fibrous materials are examined in this paper and a simple model is presented to account for the interactions between the scattered radiation from different individual fibers. The case of a normally incident plane electromagnetic wave is considered. Fiber sizes in the Rayleigh regime are considered for developing closed-form solutions. Previous studies in the literature that have addressed the scattering properties of fibrous materials have mostly ignored the effect of constructive or destructive addition of scattered waves from individual fibers, the exception being the case of parallel fibers. The difference in the effects of interference on scattering properties of parallel fibers and of woven fabrics arises from the additional interaction of radiation scattered from mutually perpendicular fibers in the latter case, which further complicates the analysis.

SCATTERING BY A PERFECTLY CONDUCTING CYLINDER IN A GYROELECTRIC MEDIUM: NUMERICAL RESULTS

1964 ◽  
Vol 42 (5) ◽  
pp. 860-872 ◽  
Author(s):  
S. R. Seshadri
Keyword(s):  
Electromagnetic Wave ◽  
Circular Cylinder ◽  
Cross Sections ◽  
Plane Electromagnetic Wave ◽  
Numerical Results ◽  
Gyrotropic Medium ◽  
Magnetic Vector ◽  
Scattering Cross ◽  
Incident Plane ◽  
Scattering Cross Sections

The numerical results on the various scattering cross sections of a perfectly conducting circular cylinder embedded in a gyrotropic medium are presented for the case in which both the gyrotropic axis and the magnetic vector of the incident plane electromagnetic wave are parallel to the axis of the cylinder.

Reflexion of a plane wave at a plasma half-space

1970 ◽  
Vol 4 (1) ◽  
pp. 67-81 ◽  
Author(s):  
P. C. Clemmow ◽  
V. B. Karunarathne
Keyword(s):  
Electromagnetic Wave ◽  
Boundary Conditions ◽  
Half Space ◽  
Diffuse Scattering ◽  
Oblique Incidence ◽  
Plane Electromagnetic Wave ◽  
Current Source ◽  
Normal Incidence ◽  
Plane Boundary ◽  
Method Of Solution

The problem of a monochromatic plane electromagnetic wave incident from vacuum on the plane boundary of a plasma half-space is considered. The method of solution is based on the representation of the disturbance in the plasma half- space as that generated by some current source in the complementary half-space into which, for the purpose of the representation, the plasma is conceived to extend. The specular reflexion boundary conditions and the diffuse scattering boundary conditions are treated in turn, first for normal incidence and then for oblique incidence.

Diffraction of a high-frequency plane electromagnetic wave by a perfectly conducting circular disc

1965 ◽  
Vol 61 (1) ◽  
pp. 247-270 ◽  
Author(s):  
D. S. Jones
Keyword(s):  
Electromagnetic Wave ◽  
High Frequency ◽  
Plane Electromagnetic Wave ◽  
Linear Equations ◽  
Circular Disc ◽  
High Frequencies ◽  
Incident Plane ◽  
Method Of Solution ◽  
Asymptotic Development ◽  
Simultaneous Linear Equations

AbstractA method already developed for the diffraction of scalar waves by a circular disc is generalized so as to be applicable to the diffraction of an electromagnetic wave. The generalization leads, in a straightforward manner, to an asymptotic development of the current density on the disc at high frequencies. The principal complication which arises is in solving three simultaneous linear equations for three constants which occur in the method of solution. Detailed calculations are given for a normally incident plane wave.

Diffraction by a wide unidirectionally conducting strip

1968 ◽  
Vol 46 (18) ◽  
pp. 2107-2117 ◽  
Author(s):  
E. V. Jull
Keyword(s):  
Integral Equation ◽  
Electromagnetic Wave ◽  
Surface Wave ◽  
Cross Section ◽  
Plane Electromagnetic Wave ◽  
Normal Incidence ◽  
Wave Excitation ◽  
Strip Surface ◽  
Scattering Cross ◽  
Conducting Strip

The diffraction of a plane electromagnetic wave by an infinitely long, unidirectionally conducting strip is formulated as a Wiener–Hopf integral equation and is solved asymptotically for a wide strip by transform techniques. In addition to the diffracted fields produced by a perfectly conducting strip, surface-wave excitation and scattering at the edges and interaction between the ends of the lines of conductivity appear in the solution. These effects are illustrated by numerical results of the scattering cross section at normal incidence for various directions of conductivity.

Reflexion of a plane wave at a plasma slab

1979 ◽  
Vol 22 (3) ◽  
pp. 525-547 ◽  
Author(s):  
J. N. Elgin
Keyword(s):  
Electromagnetic Wave ◽  
Plane Wave ◽  
Boundary Conditions ◽  
Oblique Incidence ◽  
Plasma Layer ◽  
Plane Electromagnetic Wave ◽  
Current Source ◽  
Normal Incidence ◽  
Method Of Solution ◽  
Plasma Slab

The problem of a monochromatic plane electromagnetic wave incident from a vacuum onto a plasma slab is considered. The method of solution is based on the representation of the disturbance in the plasma layer as that generated by an appropriate current source in the complementary regions into which, for the purpose of the representation, the plasma is conceived to extend. The normal incidence case is treated first for both the specular reflexion and the absorption boundary conditions, with the extension to oblique incidence following in a later section of the paper.

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