Engineering Electromagnetics
Lecture 6
Dr.-Ing. Erwin Sitompul
President University
http:/zitompul.wordpress.com
President University
Erwin Sitompul
EEM 6/1
Chapter 4
Energy and Potential
The Potential Field of a System of Charges: Conservative Property
Modulation, Demodulation and
Coding Course
Spring - 2013
Jeffrey N. Denenberg
Lecture 7b: Trellis decoding
Last time, we talked about:
Another class of linear codes,
known as Convolutional codes.
We studied the structure of the
encoder and different ways
Digital Communications I:
Modulation and Coding Course
Spring - 2013
Jeffrey N. Denenberg
Lecture 6: Linear Block Codes
Last time we talked about:
Evaluating the average probability
of symbol error for different
bandpass modulation schemes
Comparing dif
Digital Communications I:
Modulation and Coding Course
Spring- 2013
Jeffrey N. Denenberg
Lecture 7: Convolutional
codes
Last time, we talked about:
Channel coding
Linear block codes
The error detection and correction
capability
Encoding and decoding
Ham
Digital Communications I:
Modulation and Coding Course
Spring - 2013
Jeffrey N. Denenberg
Lecture 6: Linear Block Codes
Last time we talked about:
Evaluating the average probability
of symbol error for different
bandpass modulation schemes
Comparing dif
Current and Current Density
Electric charges in motion constitute a current.
The unit of current is the ampere (A), defined as a rate of
movement of charge passing a given reference point (or
crossing a given reference plane).
dQ
I=
dt
Current is defin
Engineering Electromagnetics
Lecture 4
Dr.-Ing. Erwin Sitompul
President University
http:/zitompul.wordpress.com
President University
Erwin Sitompul
EEM 4/1
Chapter 3
Electric Flux Density, Gausss Law, and DIvergence
Application of Gausss Law: Differentia
Engineering Electromagnetics
Lecture 11
Dr.-Ing. Erwin Sitompul
President University
http:/zitompul.wordpress.com
President University
Erwin Sitompul
EEM 11/1
Chapter 6
Dielectrics and Capacitance
Several Capacitance Examples
As first example, consider a
Engineering Electromagnetics
Lecture 9
Dr.-Ing. Erwin Sitompul
President University
http:/zitompul.wordpress.com
President University
Erwin Sitompul
EEM 9/1
Chapter 6
Dielectrics and Capacitance
Boundary Conditions for Perfect Dielectric Materials
Consid
The Method of Images
One important characteristic of the dipole field developed in
Chapter 4 is the infinite plane at zero potential that exists
midway between the two charges.
Such a plane may be represented by a thin infinite conducting
plane.
The co
Engineering Electromagnetics
Lecture 7
Dr.-Ing. Erwin Sitompul
President University
http:/zitompul.wordpress.com
President University
Erwin Sitompul
EEM 7/1
Chapter 5
Current and Conductors
Current and Current Density
Electric charges in motion constitut
Lecture 5
Entropy
James Chou
BCMP201 Spring 2008
Some common definitions of entropy
A measure of the disorder of a system.
A measure of the amount of energy in a system that is available
for doing work; entropy increases as matter and energy in the
univer