ELECTROMAGNETIC RADIATION-PATTERN EFFECTS OF DIELECTRIC LAYERS

1967 ◽  
Vol 45 (9) ◽  
pp. 3119-3128 ◽  
Author(s):  
J. H. Harris
Keyword(s):  
Electromagnetic Radiation ◽  
Radiation Pattern ◽  
Line Source ◽  
Magnetic Line ◽  
Dielectric Layers

A formulation for the radiation pattern of a grounded magnetic line source in the presence of dielectric layers is obtained and the effects of differing permittivity variations are investigated. It is shown that relatively simple bounding functions may be established, and that layers may be employed to obtain both directive and smoothed patterns.

Electromagnetic radiation from line sources embedded in a moving bounded magnetoplasma sheath

1977 ◽  
Vol 17 (2) ◽  
pp. 171-184 ◽  
Author(s):  
P. K. Mukherjee
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Radiation ◽  
Line Source ◽  
Plasma Sheath ◽  
Magnetic Line ◽  
Conducting Plane ◽  
Radiation Fields ◽  
Electric Line ◽  
Moving Plasma ◽  
The Magnetic Field

The problem of electromagnetic radiation from electric and magnetic line sources embedded in a moving bounded magrietoplasma sheath situated over a perfectly conducting plane is studied. The radiation fields due to the line sources consist of both E and H modes, excited simultaneously in the moving sheath. However, when the magnetic field lies parallel to the line source and is oriented normal to the direction of the sheath motion, the modes become decoupled. The far-zone radiation fields for both the electric and the magnetic line sources have been obtained, using the method of saddle-point approximation. The corresponding radiation patterns are also obtained and their variation studied as a function of the magnetic field, the location of the line source, the thickness and the velocity of the moving plasma sheath. It is found that the fields radiated by an electric line source remain unaffected by the presence of an ambient magnetic field and that, in the presence of a sufficiently intense magnetizing field, the magnetic line source over a perfectly conducting plane radiates as though surrounded by vacuum.

Vertex generated waves outside metallic wedges

1961 ◽  
Vol 57 (2) ◽  
pp. 393-400 ◽  
Author(s):  
W. E. Williams ◽  
L. Rosenhead
Keyword(s):  
Exact Solution ◽  
Difference Equation ◽  
Boundary Value Problem ◽  
Surface Impedance ◽  
Line Source ◽  
Complete Agreement ◽  
Magnetic Line ◽  
Arbitrary Angle ◽  
Surface Reactance ◽  
The Waves

ABSTRACTA study is made of the waves generated by a magnetic line source placed at the vertex of a wedge of high conductivity and arbitrary angle. The boundary-value problem is reduced to the solution of a difference equation and an exact solution obtained. The method is also applied to the case of dielectric coated wedges where the surface reactance and resistance are arbitrary, and the propagation of surface waves along such surfaces is considered briefly. The forms of the solution for large and small values of the surface impedance are obtained and show complete agreement with the known results available for a right-angled wedge and a plane.

Magnetic Line Source Diffraction by an Impedance Step

2009 ◽  
Vol 57 (4) ◽  
pp. 1289-1293 ◽  
Author(s):  
M. Ayub ◽  
M. Ramzan ◽  
A. B. Mann
Keyword(s):  
Line Source ◽  
Magnetic Line

The launching of surface waves by a magnetic line source

1961 ◽  
Vol 108 (13) ◽  
pp. 187
Author(s):  
C.M. Angulo ◽  
W.S.C. Chang
Keyword(s):  
Surface Waves ◽  
Line Source ◽  
Magnetic Line
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