Electromagnetic scattering by a buried sphere in a lossy medium of an inhomogeneous plane wave at arbitrary incidence: spectral-domain method

2016 ◽  
Vol 33 (5) ◽  
pp. 947 ◽  
Author(s):  
F. Frezza ◽  
F. Mangini
Keyword(s):  
Plane Wave ◽  
Electromagnetic Scattering ◽  
Spectral Domain ◽  
Domain Method ◽  
Inhomogeneous Plane ◽  
Lossy Medium ◽  
Inhomogeneous Plane Wave

scholarly journals Fast inhomogeneous plane wave algorithm for the analysis of electromagnetic scattering

Radio Science ◽  
2001 ◽  
Vol 36 (6) ◽  
pp. 1327-1340 ◽  
Author(s):  
Bin Hu ◽  
Weng Cho Chew ◽  
Sanjay Velamparambil
Keyword(s):  
Plane Wave ◽  
Electromagnetic Scattering ◽  
Inhomogeneous Plane ◽  
Inhomogeneous Plane Wave

The diffraction of an inhomogeneous plane wave by an impedance wedge in a lossy medium

1998 ◽  
Vol 46 (11) ◽  
pp. 1753-1755 ◽  
Author(s):  
G. Manara ◽  
P. Nepa ◽  
R.G. Kouyoumjian ◽  
B.J.E. Taute
Keyword(s):  
Plane Wave ◽  
Impedance Wedge ◽  
Inhomogeneous Plane ◽  
Lossy Medium ◽  
Inhomogeneous Plane Wave

scholarly journals Electromagnetic Scattering of Inhomogeneous Plane Wave by Ensemble of Cylinders

2020 ◽  
Vol 3 ◽  
pp. 1-7 ◽  
Author(s):  
Lorenzo Dina ◽  
Fabio Mangini ◽  
Fabrizio Frezza
Keyword(s):  
Mathematical Model ◽  
Finite Element Method ◽  
Plane Wave ◽  
Electromagnetic Scattering ◽  
Circular Cylinders ◽  
The Finite Element Method ◽  
Matlab Code ◽  
Inhomogeneous Plane ◽  
Inhomogeneous Plane Wave ◽  
Cylindrical Harmonics

The interaction between an ensemble of cylinders and an inhomogeneous plane wave is introduced and is determined, in the present paper, through a rigorous theoretical approach. Scattered electromagnetic field generated by an indefinite number of infinite circular cylinders is analyzed by the application of the generalized vector cylinder harmonics (VCH) expansion. The exact mathematical model relied upon to represent this scenario considers the so-called complex-angle formalism reaching a superposition of vectorial cylindrical-harmonics and Foldy-Lax Multiple scattering equations (FLMSE) to account for the multiscattering process between the cylinders. The method was validated by comparing the numerical results obtained with the use of the finite element method and a homemade Matlab code

The diffraction of an inhomogeneous plane wave by a wedge

Radio Science ◽  
1996 ◽  
Vol 31 (6) ◽  
pp. 1387-1397 ◽  
Author(s):  
R. G. Kouyoumjian ◽  
G. Manara ◽  
P. Nepa ◽  
B. J. E. Taute
Keyword(s):  
Plane Wave ◽  
Inhomogeneous Plane ◽  
Inhomogeneous Plane Wave

On modeling airborne very low‐frequency measurements

Geophysics ◽  
1989 ◽  
Vol 54 (12) ◽  
pp. 1596-1606 ◽  
Author(s):  
Ari Poikonen ◽  
Ilkka Suppala
Keyword(s):  
Plane Wave ◽  
Electric Field ◽  
Numerical Models ◽  
Vertical Component ◽  
Low Frequency ◽  
Primary Field ◽  
Vertical Electric Field ◽  
Inhomogeneous Plane ◽  
Inhomogeneous Plane Wave ◽  
Attenuation Characteristics

Numerical models employed in ground VLF modeling use a normally incident (homogeneous) plane wave as a primary field. We show that these models are not directly applicable to modeling the impedance and wavetilt in the air, quantities needed in the interpretation of airborne VLF resistivity measurements. Instead, the primary field must be replaced by an inhomogeneous plane wave incident on the ground at an angle close to 90 degrees in order to provide the correct behavior of the apparent resistivities in the air. VLF magnetic polarization parameters, however, can be modeled in the air using the normally incident plane wave as a primary field. We also show that the plane‐wave analysis provides the same attenuation characteristics for the wavetilt in the air that is predicted by the Norton’s surface wave obtained by using the vertical electric dipole as a source. Use of the inhomogeneous plane wave introduces the vertical component of the electric field in the model. A 2‐D modeling technique based on the network solution is used to demonstrate the effects of the vertical electric field in the H‐polarization case. The vertical electric field generates charge distributions on the horizontal boundaries of conductors. In the case of a vertical sheet‐like conductor, these charges cause a slight asymmetry in apparent‐resistivity anomalies. Attenuation characteristics of various VLF anomalies with altitude are also presented. The H‐polarization anomalies attenuate much more rapidly in the air than those for E‐polarization due to the difference in the dominating source of EM fields in each polarization.

Sign in / Sign up

Export Citation Format

Share Document