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Cylinder scattering

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Cylinder scattering

by Guangran Kevin Zhu

 

24 Jan 2011 (Updated 19 Apr 2011)

Solutions to some canonical electromagnetic scattering problems.

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Description

Certain electromagnetic scattering problems have analytical solutions. In the cylindrical coordinate, the solutions are expressed in the series form of the products of the Bessel functions and exponential functions. This package contains the code that implements the field solutions as

a) a planewave scattered by a conducting cylinder and a dielectric cylinder
b) a cylindrical wave from a line source scattered by a conducting cylinder and a dielectric cylinder.

The solutions to these problems are available in [Balanis] and [Harrington].

The following scripts demonstrate the use of this package:

plotConductingCylinderTotalFieldUnderPlaneWave

plotDielectricCylinderTotalFieldUnderPlaneWave

plotConductingCylinderTotalFieldUnderLineSource

plotDielectricCylinderTotalFieldUnderLineSource

The code returns the plots of the total field strength, Poynting vector, and phase. It may serve to verify the implementations of the numerical methods to solve the Maxwell equations in 2D.

Reference:

[Balanis] C. A. Balanis, Advanced Engineering Electromagenitcs. New York, NY: John Wiley & Sons, Inc., 1989.

[Harrington] R. F. Harrington, Time-Harmonic Electromagnetic Fields. Piscataway, NJ: IEEE Press, 2001.

MATLAB release MATLAB 7.10 (2010a)
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Comments and Ratings (2)
16 Feb 2011 SRINIVASA RAO NOOKALA

excellent; please provide me the said code in the above tag;

srinivasa.nookala@gmail.com

23 Feb 2011 Guangran Kevin Zhu

I am afraid that this Matlab code is for demonstrating the solution to canonical scattering problems. You would need some full-wave EM solver and human head phantom to study the microwave radiation and tissue absorption problem.

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Updates
06 Feb 2011

Add the functions to support

plotDielectricCylinderFieldUnderLineSource.m

11 Feb 2011

Fixed the bug that the files inside @DielectricMaterial directory were missing.

15 Feb 2011

Upload the missing files in @DielectricMaterial .

17 Mar 2011

Add the script to plot the field as a plane wave scattered by a multi-layer slab.

27 Mar 2011

Calculate both E and H, and S the Poynting vector which gives the directional flow of power.

19 Apr 2011

Removed the code on multilayer slab as it does not fit to the code description.

Tag Activity for this File
Tag Applied By Date/Time
scattering Guangran Kevin Zhu 18 Mar 2011 08:54:00
scattering Liang 21 Mar 2011 08:36:07
simulation Guangran Kevin Zhu 28 Mar 2011 11:39:59
electromagnetics Guangran Kevin Zhu 19 Apr 2011 16:07:05
electromagnetics Watterpadder Watté 31 May 2011 12:27:30

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