Domain Track:Communication Systems


Dr M Vamshi Krishna


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Domain Track Title : Communication Systems Domain

Track Total Credits ( 4-8-6)

Domain Code : CSCU2080

Courses Division( list all divisions):


1 • Smart Phone Trouble shooting and Repair (0-2-0)



2 •Satellite & TV Communications (2-1-0)



3 •RF Planning and Drive Test (0-2-0)



4 • Cell site and BTS Installation(0-2-0)



5 •Microwave & RADAR Communications (2-1-0)


6 •Project (0-0-6)



Domain Track Objectives:

1. Develop the skills required to design a next generation wireless networks

2. To involve the students in the theory and practice of wireless communications

Domain Track Learning Outcomes:

1. Various Communications available and its challenges in modern era.
2. Antenna designs for high frequency applications
3. Basic Mobile troubleshooting and maintenance
4. Installation of BTS and measuring different RF factors involved .

Course content

1. Microwave & RADAR Communications
1.1 Introduction to Microwaves: Microwave frequencies
1.2 Scattering matrix formulation
1.3 Passive microwave devices
1.4 Active Microwave Devices
1.5 Study of field pattern of various modes inside a rectangular waveguide
1.6 Microwave Measurements
1.7 Transit time limitations in Microwave Bipolar Transistors
1.8 Power frequency limitations Microwave Field Effect Transistors
1.9 Gunn Effect
1.10 IMPATT diodes
1.11 TRAPATT diodes
1.12 Microwave vacuum tube based devices
1.13 Limitations of conventional tubes at UHF
1.14 Microwave Klystron
1.15 Reflex klystron,
1.16 Traveling wave tube
1.17 Magnetron
1.18 Introduction to Smith chart and its application for the unknown impedance measurement
1.19 Scattering Matrix Parameters
1.20 Introduction to radar and RADAR Parameters
1.23 Tracking RADAR
1.24 Monpulse RADAR
1.25 RADAR Receiver
1.26 Synthetic Aperture RADAR
Text Books:
1. R E Collin, “Foundation for Microwave Engineering”, John Wiley & Sons, 2nd Edition, 2007
2. S Y LIAO, “Microwave Devices and Circuits”, PHI, 3rd Edition, 2003.
3. Merrill I skolnik, “Introduction to Radar Systems’, McGraw Hill, 2nd Edition,2007.
4. G S N Raju, “Radar Engineering and Fundamentals of Navigational Aids”, IK international Publishers, 2008
5. G S N Raju, “Microwave Engineering ”, IK international Publishers, 2008.

2. Satellite & TV Communications (32 Hours)
2.1 Configuration of a satellite communications system
2.2 Types of orbit
2.3 Radio regulations
2.4 Keplerian orbits
2.5 Useful orbits for satellite communication
2.6 Perturbations of orbits
2.7 Digital video broadcasting via satellite (DVB-S)
2.8 Second generation DVB-S
2.9 Digital transmission of telephony
2.10 Digital broadcasting of television
2.11 Configuration of a link
2.12 Uplink received power
2.13 Downlink received power
2.14 Additional losses
2.15 Noise power spectral density at the receiver input
2.16 Individual link performance
2.17 Influence of the atmosphere
2.18 Mitigation of atmospheric impairments
2.19 Overall link performance with transparent satellite
2.20 Overall link performance with regenerative satellite
Case Study: A field report as a part of practice will be submitted by visiting the Nearest center and observing the satellite links and TV transmission techniques.
Text Book
1. Satellite communications systems / Gerard Maral, Michel Bousquet. — 5th ed, wiley , 2010.
2. Satellite Communications, by Dennis Roddy (Fourth edition), McGraw Hill
3. Satellite Communication, by Timothy Pratt, Charles Bostian, Jeremy Allnutt (Second Edition), John Wiley & Sons

3. Smart Phone Troubleshooting and Repair ( 24 Hours)
3.1 How to disassemble & assemble different types of cell phones
3.2 Identifying different parts of GSM and CDMA handsets
3.3 Tools used for mobile phone repairing
3.4 How to use different tools used for mobile repairing
3.5 Work of different parts & ICs
3.6 Jumpering Techniques
3.7 Techniques used to repair (troubleshooting) different faults
Text Book:
1. Smartphone Troubleshooting And Repair Kindle Edition by Victor Emeka (Author), Tyrone Wynn (Editor)
4. Cell Site and BTS Operation, Maintenance and Troubleshooting ( 24 Hours)
4.1 Antennas for mobile Tower
4.2 Power supply at BTS
4.3 Equipment used in the Shelter
4.4 Power Interface Unit (PIU)
4.5 Line Conditioning Unit (LCU)
4.6 Free Cooling Unit (FCU)
4.7 Preventive Maintenance (PM) & site management
4.8 Basic functioning of alarm box and the interface
4.9 Concept on TRX & Baseband receiver unit (BBxx).
Text Book:
1. “Telecom Tower Maintenance” Vol. 1, Navkar Center for Skills, 2014.
5. RF Planning and Drive Test ( 24 Hours)
5.1 RF Propagation path loss
5.2 Frequency hopping and Planning
5.3 RF Optimization
5.4 GSM RF Drive Test
5.5 3G Optimization
5.6 EMF Radiation Calculation and testing
5.7 4G Optimization
Text Book:
1. Advanced cellular network planning and optimization 2G/2.5G/3G. . .evolution to 4G , Author: Ajay R Mishra, Nokia Networks, John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England
2. Radio Network Planning and Optimisation for UMTS,Second Edition,JaanaLaiho and AchimWacker, Nokia Group, Finland, Toma´ sˇ Novosad,,Nokia Networks, Nokia Group, USA, John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England
3. Material: E1-E2 Upgradation Course –Consumer Mobility, RF Planning and Drive Test
4. Material: GTL ,RF Optimisation

List of Projects
(To follow the Gate Process)
• Design of Textile Antenna
• Design of Antenna for Wearable Electronics
• Smart Antennas for Medical Applications
• Antennas for WLAN and LTE Applications
• Antennas for IoT Applications

1. Microwave & RADAR Communications
Session 1
Introduction to Microwaves: Microwave frequencies - advantages and applications,
Session 2
Scattering matrix formulation: Concept of N port scattering matrix representation - S parameters properties,
Session 3
Passive microwave devices: bends – corners – attenuators - phase changers, S Matrix Calculations for 2 port Junction: E plane and H plane Tees - Magic Tee –
Session 4
Directional Coupler - Circulator and Isolator.
Session 5
Study of field pattern of various modes inside a rectangular waveguide
Session 6
Measurement of the dielectric constant and loss tangent of materials in microwave frequency band using a rectangular waveguide cavity

Session 7
Transit time limitations in Microwave Bipolar Transistors, Power frequency limitations
Session 8
Microwave Field Effect Transistors
Session 9
Gunn Effect: RWH theory - High-field domain and modes of operation - microwave amplification,
Session 10 & 11
Avalanche transit time devices: IMPATT and TRAPATT diodes, parametric amplifiers.

Session 12
Microwave vacuum tube

Session 13
Limitations of conventional tubes at UHF

Session 14 & 15
Microwave Klystron: Two cavity Klystron - velocity modulation - multicavity klystron -Reflex klystron,
Session 16
Traveling wave tube
Session 17

Session 18
Introduction to Smith chart and its application for the unknown impedance measurement
Session 19
Concept of Generalized N-port scattering parameters, and formulation of these parameters into 2-port reflection and transmission coefficients.<

Session 20
Introduction to radar and radar parameters

Session 21

Session 22
FM CW radar
Session 23
Tracking RADAR

Session 24
Monopulse: amplitude comparison and phase comparison methods, Radar antennas.

Session 25 & 26
Radar Receiver: The Radar Receiver, Receiver Noise Figure, Super Heterodyne Receiver, Duplexers and Receivers Protectors, Radar Displays.

Our Main Teachers

Dr. M.Vamshi Krishna obtained his PhD in Computational electromagnetics and antennas from Centurion University, Paralakhemundi, Odisha.Prior to this he obtained his PG in Radar & Microwave from Andhra University and B.Tech from Jagannath Institute of Technology & Management affiliated to Biju Patnaik University of Technology & Management.

Prabhat K. Patnaik

Asst. Professor in School of Engineering and Technology Department of ECE

Prabhat K. Patnaik received a M.Tech. from Berhampur University in 2012 and B.Tech from Biju Patnaik University of Technology and Management in 2007.Presently he is working as Asst. Professor in Electronics and Communication Engineering Department at Centurion University of Technology and Management, Odisha, India. He has published 10 research articles. His current research includes digital […]

Harish Chandra Mohanta

Assistant Professor, ECE Department, Bhubaneswar Campus, CUTM

  I received my M. Tech degree in 2015 from IIT, Kharagpur. Now, I am working as an Asst. Professor in ECE Department, SoET, Bhubaneswar campus, CUTM.   Research Interests: Wireless Energy Harvesting System. Metamaterial Study. Printed Microstrip Antenna Design. Transceiver System Design. Biomedical Instrumentation. Ongoing Project:  Design and Development of a Cost-Effective Indigenous Insulin […]