BIRLA INSTITUTE OF TECHNOLOGY & SCIENCE, PILANI
EEE C433 [Electromagnetic Fields and Waves]
Second semester 2008-2009
ASSIGNMENT-2 [MM 10 marks]
Submission date: 17/3/2009 in Tutorial class
Attempt question 1 and 2 on separate Smith Chart (provided to you
Wave Guides
Lecture 24-27
Dr. Navneet Gupta
A waveguide is a hollow pipe, usually rectangular, of
specific dimensions, used as a transmission medium for
guiding microwaves.
WAVEGUIDES
TRANSMISION LINES
Give larger BW and lower signal
attenuation
Waveguide
Wave Guides
Lecture 22-25
Dr. Navneet Gupta
A waveguide is a hollow pipe, usually rectangular, of
specific dimensions, used as a transmission medium for
guiding microwaves.
WAVEGUIDES
TRANSMISION LINES
Give larger BW and lower signal
attenuation
At microw
Electromagnetic Propagation in Sea Water and its value in Military Systems
Mark Rhodes, Engineering Manager
Wireless Fibre Systems Ltd., Adaptive House, Quarrywood Court, Livingston, EH54 6AX,
West Lothian, UK
www.wirelessfibre.co.uk
Abstract
Underwater e
Antennas: Basics
Dr. Navneet Gupta
Lecture-29-31
EEEC433
Dr. Navneet Gupta
1
Introduction
Two-way wireless transmission
Key component: Antenna
Cellular phone handset
Base station Tower
EEEC433
Dr. Navneet Gupta
2
Basics
Antenna as a
radiator
sensor of EM
Antennas
Dr. Navneet Gupta
Lecture-30-35
EEEC433
Dr. Navneet Gupta
1
Introduction
Two-way wireless transmission
Key component: Antenna
Antenna:
as an interface
as a mode transformer
as an impedance transformer
Cellular phone handset
Base station Tower
EEE
Transmission Lines
(Circuit and Field theory)
EEE C 433
Lecture 6-7
Dr. Navneet Gupta
EEE Group
Types of Transmission Lines
Pair of wires
Coaxial cable
IC interconnects
PCB tracks
All transmission lines have two ends.
INPUT END or the GENERATOR END (Oth
Review of last lecture
The longitudinal electric field for TM11 mode is given by
E z sin(5x ) sin(8 y )e jz V / m
Find the remaining field components. Find the cut off
frequency of the mode and the phase and group velocity of
the mode at a frequency twice
Microstrip- Patch Antenna, Radio Link
and Radar Equation
Dr. Navneet Gupta
Lecture: 39
Microstrip Patch Antenna
W
L
Rectangular Patch:
EEEC433
Dr.Navneet Gupta
2
EEEC433
Dr.Navneet Gupta
3
EEEC433
Dr.Navneet Gupta
4
Radio Link and Friis Formula
r
Pr Aer A
Types of Antennas
Dr. Navneet Gupta
Lecture: 36-38
Classification of Antennas
Basic Antenna Types
Dipoles
Loop
Slots
Waveguide types
Horn antenna
Reflector and aperture
Dish antenna
End-Fire
Yagi-Uda and Helical
Broad-Band Type
Spiral and log
Plane Waves at Interfaces and
absorbing sheets
Lecture-10-11
2/9/2011
EEE C433
Dr. Navneet Gupta
1
Normal Incidence -Plane Wave incident on
boundary between two media
2/9/2011
EEE C433
Dr. Navneet Gupta
2
Medium 1 air and medium 2 conductor
Er Ei
H t 2H i
Terminated Transmission Line
Lecture 16-17
EEE C433
Dr. Navneet Gupta
Introduction
GENERAL DEFINITION
A transmission line can be defined as a device for
propagating or guiding energy from one point to
another.
EEE C433
Dr. Navneet Gupta
Transmission Lin
Lecture-22
Single-Stub Matching
EEE C433
Dr. Navneet Gupta
WTG = .109
A 50- T-L is terminated
in an impedance of
ZL = 35 - j47.5. Find the
position and length of the
short-circuited stub to
.match it
WTG = .168
yL
1) Normalize ZL
zL = 0.7 j0.95
2) Find zL
Lecture-20
Single-Stub Matching
EEE C433
Dr. Navneet Gupta
WTG = .109
A 50- T-L is terminated
in an impedance of
ZL = 35 - j47.5. Find the
position and length of the
short-circuited stub to
.match it
WTG = .168
yL
1) Normalize ZL
zL = 0.7 j0.95
2) Find zL
22
Coupled Antennas
22.1 Near Fields of Linear Antennas
In calculating mutual coupling effects between closely-spaced linear antennas, we need
to know the elds produced by an antenna at near distances. The elds generated by a
thin wire antenna with curren
20
Array Design Methods
20.1 Array Design Methods
As we mentioned in Sec. 19.4, the array design problem is essentially equivalent to the
problem of designing FIR digital lters in DSP. Following this equivalence, we discuss
several array design methods, s
Lecture-26
Existence of conducting end walls at z = 0 and z = d
gives rise to multiple reflections and sets up standing
waves.
No waves propagate in an enclosed cavity.
If medium 2 is a perfect conductor, the reflected wave is equal in
magnitude to the in
Electromagnetic Fields and Waves
EEE C 433
Lecture 1-4
Dr. Navneet Gupta
Assistant Professor, EEE Group
1/19/2009
BITS, PILANI
Gupta
Dr. Navneet
1
Course Description
Course No.
Course Title
: EEE C433
: Electromagnetic Fields
and Waves
Instructor-in-charg
SMITH CHART AND ITS
APPLICATIONS
Lecture-18-23
EEE C433
Dr. Navneet Gupta
Introduction
Transmission line calculation-such as the
determination of input impedance, reflection
coefficient and load impedance often involve
tedious manipulations of complex nu
BIRLA INSTITUTE OF TECHNOLOGY AND SCIENCE, PILANI (Rajasthan)
SECOND SEMESTER 2009-2010
ElectromagneticFieldsandWaves(EEEC433)
(ProjectAssignment)
To appreciate the applications of Electromagnetics in engineering field,
students in a group of two have to
BIRLA INSTITUTE OF TECHNOLOGY & SCIENCE, PILANI
EEE C433 [Electromagnetic Fields and Waves]
Second semester 2009-2010
ASSIGNMENT-2 [MM 10 marks]
Submission date: 15/3/2010
Attempt question 1 and 2 on separate Smith Chart (provided to you on CMT website).
Yerkes Summer Institute 2002
Before we begin our investigations into radio waves you should review the
following material on your trip up to Yerkes. For some of you this will be a
refresher, but others may want to spend more time learning about the basic
Propagation of EM
Waves
Lecture 8-9
1
EEEC433
Dr. Navneet Gupta
Waves in Space
A wave is a function of both space and time.
E and H are everywhere perpendicular .
Transverse in nature TEM wave
Wave Equation:
Ey
2
t
2
1 Ey
2
x
2
EEEC433
Dr. Navneet Gupta
Propagation of EM
Waves
Lecture 9-11
1
EEEC433
Dr. Navneet Gupta
Waves in Space
A wave is a function of both space and time.
E and H are everywhere perpendicular .
Transverse in nature TEM wave
Wave Equation:
Ey
2
t
2
1 Ey
2
x
2
EEEC433
Dr. Navneet Gupt
POLARIZATION AND OBLIQUE
INCIDENCE
Lecture-12-14
Wave Polarization
Wave polarization describes the shape and locus of tip
of the E vector at a given point in space as a function of
time.
E
y
E2
z(out)
2/11/2011
EEE C433
x
Dr. Navneet Gupta
2
Wave Polariz
Lecture-12-14
Wave Polarization
Wave polarization describes the shape and locus of tip
of the E vector at a given point in space as a function of
time.
E
y
E2
z(out)
2/10/2012
EEE C433
x
Dr. Navneet Gupta
2
Wave Polarization
A uniform plane wave traveli
IONOSPHERIC PROPAGATION
Lecture-15
Type of waves in Earths atmosphere
Day and night structure of ionosphere
Plasma density N increases with height upto 300 km, then it falls off.
Ionosphere: a medium (called plasma)
Consists of
Free electrons
Ions, and
Terminated Transmission Line
Lecture 15-17
EEE C433
Dr. Navneet Gupta
Introduction
GENERAL DEFINITION
A transmission line can be defined as a device for
propagating or guiding energy from one point to
another.
EEE C433
Dr. Navneet Gupta
At low frequenc