EM Scattering
Homework assignment 4
Problem 1:
Use the Rayleigh approximation (small particle approximation) and calculate the scattering cross
section of a small dielectric sphere with the dielectric
EM Scattering
Homework assignment 3
Problem 1:
Ei
Consider the problem of normal scattering from an
y
infinitely long, perfectly conducting cylinder of radius
a whose axis is along the z-axis. Assume
EM Scattering
Homework assignment 4
Problem 1:
Use the Rayleigh approximation (small particle approximation) and calculate the scattering cross
section of a small dielectric sphere with the dielectric
EM Scattering
Homework assignment 3
Problem 1:
Consider the problem of normal scattering from an
Ei
y
infinitely long, perfectly conducting cylinder of radius
a whose axis is along the z-axis. Assume
EM Scattering
Homework assignment 3
Problem 1:
y
z
A uniform TM plane wave (electric field along the
z-direction) is normally incident on a perfectly
conducting wedge with the angle 300 at an
ki
angle
EM Scattering
Homework assignment 3
Problem 1:
y
z
A uniform TM plane wave (electric field along the zdirection) is normally incident on a perfectly
conducting wedge with 30deg at an angle 0 .
ki
The
EM Scattering
Homework assignment 3
Problem 1:
y
z
A uniform TM plane wave (electric field along the
z-direction) is normally incident on a perfectly
conducting wedge with the angle 240 at an
ki
angle
EM Scattering
Homework assignment 3
Problem 1:
y
z
A uniform TM plane wave (electric field along the zdirection) is normally incident on a perfectly
conducting wedge with 30deg at an angle 0 .
ki
The
EM Scattering
Homework assignment 2
Problem 1:
A plane wave traveling in the x direction in vacuum is scattered by a perfectly conducting, infinite
cylinder with the radius of 1cm whose axis coincides
EM Scattering
Homework assignment 2
Problem 1:
A plane wave traveling in the x direction in vacuum is scattered by a perfectly conducting, infinite
cylinder with the radius of 1cm whose axis coincides
EM Scattering
Homework assignment 2
Problem 1:
A plane wave traveling in the x direction in vacuum is scattered by a perfectly conducting, infinite
cylinder with the radius of 1cm whose axis coincides
EM Scattering
Homework assignment 2
Problem 1:
A plane wave traveling in the x direction in vacuum is scattered by a perfectly conducting, infinite
cylinder with the radius of 1cm whose axis coincides
EM Scattering
Homework assignment 1
Problem 1:
For a dielectric object with a volume V and space-dependent dielectric constant p ( r ) , the
scattered field in the far field zone is given by
k 2 exp j
EM Scattering
Homework assignment 1
Problem 1:
An incident wave travels in free space (dielectric
constant
0 , permeability
z
0 , wave number
k 0 0 ) and impinges upon a dielectric
cylinder with the
EM Scattering
Homework assignment 1
Problem 1:
An incident wave travels in free space (dielectric constant 0 , permeability 0 , wave number
k 0 0 ) and impinges upon a dielectric cylinder with the rad
EM Scattering
Homework assignment 1
Problem 1:
For a dielectric object with a volume V and space-dependent dielectric constant p ( r ) , the
scattered field in the far field zone is given by
k 2 exp j
Geometrical optics
Consider the wave equation for the electric field propagating in a
source-free, homogeneous medium
2 E k 2 E 0
k 2 2
E 0
Luneberg-Kline high frequency approximation:
E r ; exp jk r
Electromagnetic scattering
Graduate Course
Electrical Engineering (Communications)
1st Semester, 1388-1389
Sharif University of Technology
Contents of lecture 9
High frequency approximations:
Physical
Electromagnetic scattering
Graduate Course
Electrical Engineering (Communications)
1st Semester, 1388-1389
Sharif University of Technology
Contents of lecture 8
Contents of lecture 8:
Scattering from
Equations for a finite wire
We would now like to consider the case of a finite, but thin
conductive cylindrical wire (along the z-axis)
Note: the case of an infinite cylindrical wire was solved before
Surface integral equations for conductors
Let us return to our surface integral
0 , 0
equations, but now assume that the
scattering object is a perfect conductor.
The immediate result is the surface
V
Surface integral equations for dielectrics
We can now derive a set of coupled surface integral equations
for the tangential components of the electric and magnetic fields
(they are continuous across i
Electromagnetic scattering
Graduate Course
Electrical Engineering (Communications)
1st Semester, 1388-1389
Sharif University of Technology
Contents of lecture 7
Contents of lecture 7:
Scattering from
Electromagnetic scattering
Graduate Course
Electrical Engineering (Communications)
1st Semester, 1388-1389
Sharif University of Technology
Contents of lecture 6
Contents of lecture 6:
Scattering from
Electromagnetic scattering
Graduate Course
Electrical Engineering (Communications)
1st Semester, 1388-1389
Sharif University of Technology
Contents of lecture 5
Contents of lecture 5:
Scattering from
Electromagnetic scattering
Graduate Course
Electrical Engineering (Communications)
1st Semester, 1390-1391
Sharif University of Technology
Contents of lecture 4
Contents of lecture 4:
Scattering from
Scattering matrix of the interface
Let us consider a generalized version of the problem: when
waves are incident on the interface from both media
TE scattering:
z 0 E y A exp jk 0, z z B exp jk 0, z z
Electromagnetic scattering
Graduate Course
Electrical Engineering (Communications)
1st Semester, 1388-1389
Sharif University of Technology
Contents of lecture 3
Lecture 3: Scattering from layered medi
Electromagnetic scattering
Graduate Course
Electrical Engineering (Communications)
1st Semester, 1390-1391
Sharif University of Technology
General information
Information about the instructor:
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