FDTD analysis of scattered fields from a moving conducting surface

High-Frequency Analyses for Scattered Fields by a Cylindrically Curved Conducting Surface

IEICE Transactions on Electronics ◽

10.1587/transele.e92.c.25 ◽

2009 ◽

Vol E92-C (1) ◽

pp. 25-32 ◽

Cited By ~ 9

Author(s):

Keiji GOTO ◽

Toru KAWANO ◽

Toyohiko ISHIHARA

Keyword(s):

High Frequency ◽

Conducting Surface ◽

Scattered Fields

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The Determination of Shortwave Asymptotics of Scattered Fields by the Stationary-Phase Method

Telecommunications and Radio Engineering ◽

10.1615/telecomradeng.v54.i7.20 ◽

2000 ◽

Vol 54 (7) ◽

pp. 14-22 ◽

Cited By ~ 1

Author(s):

Il'ya Vladimirovich Sukharevskii ◽

Oleg ll'ich Sukharevsky

Keyword(s):

Stationary Phase ◽

Phase Method ◽

Stationary Phase Method ◽

Scattered Fields

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Reflection properties of electromagnetic waves from a moving conducting surface

Information and Communication Technology for Education ◽

10.2495/icte130351 ◽

2014 ◽

Author(s):

Lei Kuang ◽

Wenchao Xu ◽

Shouzheng Zhu ◽

Zhengqi Zheng ◽

Danan Dong

Keyword(s):

Electromagnetic Waves ◽

Conducting Surface

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MEASUREMENTS ON ELECTROMAGNETIC SCATTERED FIELDS OF SOME RF AND MICROWAVE EQUIPMENTS

Environmental Engineering and Management Journal ◽

10.30638/eemj.2017.245 ◽

2017 ◽

Vol 16 (10) ◽

pp. 2371-2380

Author(s):

Sorin-Bogdan Balmus ◽

Dumitru D. Sandu ◽

Paul Gasner ◽

Sorin Dobrea

Keyword(s):

Scattered Fields

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Ultrasonic Scattered Field Distribution of One and Two Cylindrical Solids with Phased Array Technique

Chinese Journal of Mechanical Engineering ◽

10.1186/s10033-019-0418-7 ◽

2019 ◽

Vol 32 (1) ◽

Author(s):

Xiaozhou Liu ◽

Jian Ma ◽

Haibin Wang ◽

Sha Gao ◽

Yifeng Li ◽

...

Keyword(s):

Plane Wave ◽

Field Distribution ◽

Scattered Field ◽

Phased Array ◽

Simulation Analysis ◽

Plane Waves ◽

Theoretical Solution ◽

Steel Matrix ◽

Field Distributions ◽

Scattered Fields

AbstractThe scattered fields of plane waves in a solid from a cylinder or sphere are critical in determining its acoustic characteristics as well as in engineering applications. This paper investigates the scattered field distributions of different incident waves created by elastic cylinders embedded in an elastic isotropic medium. Scattered waves, including longitudinal and transverse waves both inside and outside the cylinder, are described with specific modalities under an incident plane wave. A model with a scatterer embedded in a structural steel matrix and filled with aluminum is developed for comparison with the theoretical solution. The frequency of the plane wave ranged from 235 kHz to 2348 kHz, which corresponds to scaling factors from 0.5 to 5. Scattered field distributions in matrix materials blocked by an elastic cylindrical solid have been obtained by simulation or calculated using existing parameters. The simulation results are in good agreement with the theoretical solution, which supports the correctness of the simulation analysis. Furthermore, ultrasonic phased arrays are used to study scattered fields by changing the characteristics of the incident wave. On this foundation, a partial preliminary study of the scattered field distribution of double cylinders in a solid has been carried out, and the scattered field distribution at a given distance has been found to exhibit particular behaviors at different moments. Further studies on directivities and scattered fields are expected to improve the quantification of scattered images in isotropic solid materials by the phased array technique.

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Self-force on moving electric and magnetic dipoles: Dipole radiation, Vavilov-Čerenkov radiation, friction with a conducting surface, and the Einstein-Hopf effect

Physical Review Research ◽

10.1103/physrevresearch.2.043347 ◽

2020 ◽

Vol 2 (4) ◽

Author(s):

Kimball A. Milton ◽

Hannah Day ◽

Yang Li ◽

Xin Guo ◽

Gerard Kennedy

Keyword(s):

Cerenkov Radiation ◽

Conducting Surface ◽

Magnetic Dipoles ◽

Dipole Radiation ◽

Self Force

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Analytic solutions of the scattering by two multilayered dielectric spheres

Canadian Journal of Physics ◽

10.1139/p92-112 ◽

1992 ◽

Vol 70 (9) ◽

pp. 696-705 ◽

Cited By ~ 7

Author(s):

A-K. Hamid ◽

I. R. Ciric ◽

M. Hamid

Keyword(s):

Boundary Conditions ◽

Cross Sections ◽

Plane Electromagnetic Wave ◽

Expansion Method ◽

Analytic Solutions ◽

Addition Theorem ◽

Modal Expansion ◽

Modal Expansion Method ◽

Dielectric Spheres ◽

Scattered Fields

The problem of plane electromagnetic wave scattering by two concentrically layered dielectric spheres is investigated analytically using the modal expansion method. Two different solutions to this problem are obtained. In the first solution the boundary conditions are satisfied simultaneously at all spherical interfaces, while in the second solution an iterative approach is used and the boundary conditions are satisfied successively for each iteration. To impose the boundary conditions at the outer surface of the spheres, the translation addition theorem of the spherical vector wave functions is employed to express the scattered fields by one sphere in the coordiante system of the other sphere. Numerical results for the bistatic and back-scattering cross sections are presented graphically for various sphere sizes, layer thicknesses and permittivities, and angles of incidence.

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