LNMIIT, Jaipur

Department of Electronics and Communication

Engineering
Subject Code:
EC223 Course Title: Microwave Engineering L: 3 T: 0 P: 0 C: 3

Pre-requisite: Engineering Electromagnetics Year: 2nd Semester: Even

Course Type: Program Core, BTech. ECE Credits: 3 Total Contact Hours: 42
Lecture Hrs./Week: 3 Tutorial Hrs./Week: 0 Practical Hrs./Week: 0
** L: Lectures, T: Tutorials, P: Projects C: Credit

LEARNING OBJECTIVE:
The primary objective of the Microwave Engineering course is to provide a comprehensive
understanding of the principles and applications of microwave components. Students will be able to
analyze the operation of microwave tubes such as klystrons, magnetrons as well as microwave solid-
state devices. Students will acquire the skills to design and evaluate microwave passive components.
Additionally, students will learn the basic principles of microwave measuring instruments, such as
network analyzers and spectrum analyzers.
COURSE OUTCOMES (COs):

Bloom’s
On completion of this course, the students will have the ability to:
Level
Explain the working principles, characteristics, and applications of
CO1 2
microwave tubes and solid-state microwave devices.
Analyze various types of filters using the principles of microwave networks.
CO2 4
Examine the working of various microwave passive components and their
CO3 3
applications.
Understand the basic concepts of microwave antennas.
CO4 2
Illustrate the working principles of microwave measuring instruments.
CO5 2

Lecture
Course Topics Hours COs
UNIT – I (Microwave Tubes and Devices) 12
1.1 History of microwaves, microwave frequency bands, general applications of
microwaves, advantages of microwaves, limitations of vacuum tubes, 1
classification of microwave devices.
1.2 Microwave tubes: O type: Two cavity klystrons – structure, reentrant cavities,
velocity modulation process and applegate diagram, bunching process and 3
mathematical expressions for output power and efficiency.
1.3 Reflex klystrons – structure, Applegate diagram and principle of working,
mathematical theory of bunching, power output, efficiency, oscillating CO1
2
modes and output characteristics, electronic tuning sensitivity.
1.4. M Type: Introduction, cross-field effects, magnetrons – different types,
Travelling wave magnetron – Hull cut-off and Hartree conditions, modes of
3
resonance and pi-mode operation, separation of pi- mode.

ECE Department, The LNMIIT Jaipur P a g e | 1-3

 LNMIIT, Jaipur
Department of Electronics and Communication
Engineering
1.5 Gunn Diode: RWH theory, Gunn effect, two valley explanation, Gunn
oscillation modes. 2
1.6 Introduction to Transit Time Devices (IMPATT, TRAPATT) 1

UNIT – II (Microwave Network Analysis and Filter Design) 10

2.1 Impedance and admittance matrices, scattering matrix (properties,
reciprocal, lossless network, shift in reference plane), ABCD matrix, 4
ABCD parameter for some useful two port circuits, relations between S-
parameters and ABCD parameters. CO2
2.2 Strip lines and microstrip lines structures, fringing field, effective 1
dielectric constant, characteristic impedance and phase velocity.
2.3 Introduction to microwave filter, design of Butterworth and Chebyshev 5
LPF and HPF using insertion loss method, filter transformations and
scaling. Practical filter realization using microstrip lines, stepped-
impedance resonating filters, coupled-line filters.
UNIT – III (Microwave Passive Components) 10
3.1 Rectangular waveguide cavity resonator, circular waveguide cavity 4
resonator, Dielectric resonator, excitation of resonator(s).
3.2 E plane Tee, H plane Tee, Magic Tee, directional coupler, rat race
coupler, branch line coupler, coupled line coupler, Wilkinson power 4 CO3
divider, Circulators, and Isolators.
3.3 Microwave diodes (Schottky, PIN), microwave attenuators.
2
UNIT – IV (Basic Antenna Concepts) 7
4.1 Definitions and basic antenna parameters: radiation patterns, beam solid
2
angle, radiation intensity, beam efficiency, directivity, and gain.
CO4
4.2 Aperture concept (effective, scattering, loss, and collecting), aperture 1
efficiency.
4.3 Antenna field zones: near and far fields. 1
4.4 Friis Transmission equation and link budget. 1
4.5 Introduction to microwave antennas (horn antenna, parabolic dish antenna, 2
patch antenna)
UNIT – V (Microwave Instruments and Measurements)
3
5.1 Microwave power, frequency and impedance measurement. microwave
3
test instruments like, Vector Network Analyzer, Spectrum Analyzer.
CO5

Textbook References:
Textbook:
1. Pozar David M., Microwave Engineering, John Wiley & Son Inc., 4th Edition 2012.
2. Samuel Y. Liao, Microwave Devices and Circuits, Pearson Education, 3rd Edition 1996.
3. J. D. Kraus, Antenna and Wave Propagation, McGraw-Hill Inc.,US, 5th Edition 2017.
4. A. Das, S.K. Das, Microwave Engineering, Mc Graw Hill India, 3rd Edition 2014
5. Jia-Shen G. Hong, M. J. Lancaster, “Microstrip filters for RF/microwave applications”, Wiley, 1st
Edition 2001.

ECE Department, The LNMIIT Jaipur P a g e | 2-3

 LNMIIT, Jaipur
Department of Electronics and Communication
Engineering
Reference books:
1. C.A. Balanis, Antenna theory: Analysis and Design, Wiley. 3rd Edition 2005.
2. Peter A. Rizzi, Microwave Engineering Passive Circuits, Prentice-Hall, 1st Edition 1988.
3. R.E. Collin, Foundations for Microwave Engineering, IEEE Press, John Wiley. 2nd Edition 2000
4. Da Silva E High Frequency and Microwave Engineering, Newnes, 1st Edition 2001.
5. Mike Golio, “The RF and Microwave Handbook”, CRC Press, 1st Edition, 2000.
6. Samuel Silver, Samuel Silver, “Microwave Antenna Theory and Design”, The Institution of
Engineering and Technology, 1st Edition 1984.
7. Sorrentino R., Bianchi G, “Microwave and RF Engineering”, Wiley, 1st Edition 2009.

Additional Resources:
1. https://nptel.ac.in/courses/117101056
2. https://youtube.com/playlist?list=PLOzRYVm0a65dcxLJgO0uzQ0Sad-57w37u

Evaluation Method
Component Marks Associated COs
Quiz-1 (Pre-midterm) 10 CO1
Midterm 30 CO1, CO2
Quiz-2 (post-midterm) 10 CO3, CO4
Group Project (post-midterm) 10 CO2, CO3
End Term Exam 40 CO1-CO5
Total 100

CO and PO Correlation Matrix for B.Tech. ECE

CO PO1 PO2 PO3 PO4 PO5 PO6 PO7 PO8 PO9 PO10 PO11 PO12 PSO1 PSO2 PSO3
CO1 3 3 3 1 1 2 1
CO2 3 3 3 3 2 3 2 2 1 1 2 1
CO3 3 3 3 3 2 3 2 2 1 1 2 1
CO4 1 1 3 1 2 1
CO5 1 1 1 1 2 1

Last Updated On: 5th December 2024

Approved By:

ECE Department, The LNMIIT Jaipur P a g e | 3-3