Diffraction of a skew-incident plane electromagnetic wave by a wedge with axially anisotropic impedance faces

2013 ◽  
pp. 45-67
Keyword(s):  
Electromagnetic Wave ◽  
Plane Electromagnetic Wave ◽  
Incident Plane

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.

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.

scholarly journals METHOD FOR DETERMINING AN ELECTROMAGNETIC FIELD, SCATTERED BY A HORSE IRRADIATOR, PLACED IN THE FOCUS OF THE PARABOLOID ROTATION OF AN ANTENNA SYSTEM OF THE GROUND-DEPENDENT STATIONS

2019 ◽  
pp. 80-93
Author(s):  
O. L. Sidorchuk
Keyword(s):  
Electromagnetic Field ◽  
Electromagnetic Wave ◽  
Plane Electromagnetic Wave ◽  
Antenna System ◽  
New Method ◽  
Dispersion Surface ◽  
Incident Plane ◽  
Arbitrary Plane ◽  
Single Polarization ◽  
Horn Feed

The article proposes an improved mathematical apparatus for studying the amplitudes of the electromagnetic field scattered by an antenna system with a horn feed of pyramidal shape, which is located at the focus of the paraboloid of rotation using the Credo-type ground-based intelligence stations (1RL133). Improvement of the apparatus consists in applying a new method for determining the scattered electromagnetic field reemitted by the irradiator located at the focus of the paraboloid of rotation of the antenna system during normal polarization of the incident plane wave in its plane of incidence, as well as coincidence of the wave and its plane of incidence as a superposition of an arbitrary incidence. The task includes two components: determination of the electromagnetic field in the plane of the focus of the paraboloid of rotation with an arbitrary plane electromagnetic wave falling on it and finding the electromagnetic field scattered from the circular polarization horn feed of the polarized paraboloid with an arbitrary plane electromagnetic wave falling on it. The materials presented in the article and previously received by the author combine the case of an arbitrary fall of an electromagnetic wave, which is a superposition of two cases: the wave is polarized normally to the plane of incidence; coincidence of the polarization of the wave and the plane of its fall. Calculations using the new method will allow evaluating the effect of various elements placed in the plane of focus on the scattering of antenna systems as a whole in any case of a wave falling on a mirror. The construction of radar stations based on a parabolic antenna calculated using a new method will allow one to gain significant advantages over traditional single-polarization radar stations when detecting objects with a small effective dispersion surface and to highlight their information signs.

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