Diffraction of Electromagnetic Waves by Cylindrical Structures Characterized by Variable Curvature and Surface Impedance

1971 ◽  
Vol 12 (2) ◽  
pp. 186-196 ◽  
Author(s):  
E. Bahar
Keyword(s):  
Surface Impedance ◽  
Electromagnetic Waves ◽  
Cylindrical Structures ◽  
Variable Curvature

PONDEROMOTIVE EFFECT OF ELECTROMAGNETIC WAVES ON THIN VIBRATORS WITH WEAKLY PERTURBED SURFACE IMPEDANCE

2020 ◽  
Vol 79 (14) ◽  
pp. 1205-1215
Author(s):  
Yu. M. Penkin ◽  
V. A. Katrich ◽  
M. V. Nesterenko ◽  
S. L. Berdnik
Keyword(s):  
Surface Impedance ◽  
Electromagnetic Waves

Minimizing the reflection of electromagnetic waves by surface impedance

Wave Motion ◽  
1987 ◽  
Vol 9 (1) ◽  
pp. 19-36 ◽  
Author(s):  
T.J. Bridges ◽  
G. Chen ◽  
G. Crosta
Keyword(s):  
Surface Impedance ◽  
Electromagnetic Waves

scholarly journals ELECTROMAGNETIC WAVES RADIATION BY A VIBRATORS SYSTEM WITH VARIABLE SURFACE IMPEDANCE

2016 ◽  
Vol 51 ◽  
pp. 157-163 ◽  
Author(s):  
Sergey L. Berdnik ◽  
Viktor Katrich ◽  
Mikhail V. Nesterenko ◽  
Yuriy M. Penkin
Keyword(s):  
Surface Impedance ◽  
Electromagnetic Waves ◽  
Variable Surface

scholarly journals Using the Carotazh Method to Determine the Electrical Characteristics of the Earth’s Subsoil

2021 ◽  
Keyword(s):  
Magnetic Field ◽  
Electrical Conductivity ◽  
Electromagnetic Field ◽  
Surface Impedance ◽  
Electromagnetic Waves ◽  
Dielectric Permeability ◽  
Electrical Characteristics ◽  
Measuring Systems ◽  
The Earth ◽  
The Magnetic Field

Logging is a detailed study of the structure of the well incision by descent and ascent of a geophysical probe. It is often used to determine the electrical conductivity of terrestrial depths. To do this, the sides of the well deepen the electrodes, and they are fed into the depths of a constant electric current. However, if you use natural or artificial electromagnetic waves, it becomes possible to determine the dielectric permeability of terrestrial rocks at depth. To do this, the surface impedance is first measured on the surface of the earth, and then by measuring at a certain frequency of the electromagnetic field in the well hole, the electrical conductivity and dielectric permeability of terrestrial rocks are calculated by fairly simple formulas. Such measurements can be carried out by standard measuring systems, adding only a narrow frame with wire winding to measure the magnetic field.

scholarly journals Simple and Efficient Computational Method to Analyze Cylindrical Plasmonic Nanoantennas

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Karlo Costa ◽  
Victor Dmitriev
Keyword(s):  
Integral Equation ◽  
Electric Field ◽  
Method Of Moments ◽  
Surface Impedance ◽  
Near Infrared ◽  
Basis Functions ◽  
Computational Method ◽  
Good Precision ◽  
Cylindrical Structures ◽  
Plasmonic Nanoantennas

We present in this work a simple and efficient technique to analyze cylindrical plasmonic nanoantennas. In this method, we take into account only longitudinal current inside cylindrical structures and use 1D integral equation for the electric field with a given surface impedance of metal. The solution of this integral equation is obtained by the Method of Moments with sinusoidal basis functions. Some examples of calculations of nanoantennas with different geometries and sources are presented and compared with the commercial software Comsol 3D simulations. The results show that the proposed technique provides a good precision in the near-infrared and lower optical frequencies 100–400 THz.

scholarly journals Artificial and natural electromagnetic structures with strongly inductive surface impedance

2021 ◽  
Vol 1198 (1) ◽  
pp. 012002
Author(s):  
Yu B Bashkuev ◽  
M G Dembelov ◽  
D G Buyanova ◽  
L Kh Angarkhaeva ◽  
I B Naguslaeva
Keyword(s):  
Numerical Modelling ◽  
Surface Impedance ◽  
Electromagnetic Waves ◽  
Layered Structures ◽  
Numerical Results ◽  
Radio Waves ◽  
Attenuation Function ◽  
Field Level

Abstract Artificial and natural electromagnetic structures with strongly inductive surface impedance are considered. The object of the research is layered structures of the “dielectric-conductor” type. The existence of impedance media with the maximum possible phase of a strongly inductive impedance in the range from a few hertz to tens of gigahertz has been established. The results of numerical modelling of the propagation of decimeter radio waves over a plane strongly inductive surface are presented, these numerical results are necessary for calculating the attenuation function W and the field level E of microwave electromagnetic waves.

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