18EC63 Microwave & Antennas syllabus for EC

Microwave Tubes:

Introduction, Reflex Klystron Oscillator, Mechanism of Oscillations, Modes of Oscillations, Mode Curve (Qualitative Analysis only).

(text1: 9.1,9.2.1)

Microwave Transmission Lines:

Microwave Frequencies, Microwave devices, Microwave Systems, Transmission Line equations and solutions, Reflection Coefficient and Transmission Coefficient, Standing Wave and Standing Wave Ratio, Smith Chart, Single Stub matching. (text 2: 0.1, 0.2, 0.3, 3.1, 3.2, 3.3, 3.5, 3.6 Except Double stub matching) L1,L2

Microwave Network theory:

Introduction, Symmetrical Z and Y-Parameters for reciprocal Networks, S matrix representation of Multi-Port Networks. (Textl: 6.1, 6.2, 6.3)

Microwave Passive Devices:

Coaxial Connectors and Adapters, Attenuators, Phase Shifters, Waveguide Tees, Magic tees. (Text 1:6.4.2,6.4.14, 6.4.15, 6.4.16) L1,L2

Strip Lines:

Introduction, Micro Strip lines, Parallel Strip lines, Coplanar Strip lines, Shielded Strip Lines. (Text 2: 11.1,11.2, 11.3, 11.4)

Antenna Basics:

Introduction, Basic Antenna Parameters, Patterns, Beam Area, Radiation Intensity, Beam Efficiency, Directivity and Gain, Antenna Apertures, Effective Height, Radio Communication Link, Antenna Field Zones. (Text 3: 2.1 - 2.7, 2.9- 2.11, 2.13) L1,L2,L3

Point Sources and Arrays:

Introduction, Point Sources, Power Patterns, Power Theorem, Radiation Intensity, Arrays of two isotropic point sources, Linear Arrays of n Isotropic Point Sources of equal Amplitude and Spacing. (Text 3: 5.1-5.6, 5.9, 5.13)

Electric Dipoles:

Introduction, Short Electric Dipole, Fields of a Short Dipole, Radiation Resistance of a Short Electric Dipole, Thin Linear Antenna (Field Analyses) (Text3: 6.1-6.5)

Loop and Horn Antenna:

Introduction, Small loop, The LoopAntenna General Case, The Loop Antenna as a special case, Radiation resistance of loops, Directivity of Circular Loop Antennas with uniform current, Horn antennas Rectangular Horn Antennas. (Text3:7.1, 7.2, 7.4, 7.6, 7.7, 7.8, 7.19, 7.20) 

Antenna Types:

The Helix geometry, Helix modes, Practical Design considerations for the mono-filar axialmode Helical Antenna, Yagi-Uda array, Parabolic reflector (Ten 3: 8.3, 8.4, 8.5, 8.8, 9.5)

Course outcomes:

At the end of the course students will be able to:

1. Describe the use and advantages of microwave transmission

2 Analyze various parameters related to microwave transmission lines and waveguides

3. Identify microwave devices for several applications

4. Analyze various antenna parameters necessary for building a RF system

5. Recommend various antenna configurations according to the applications.

Question paper pattern:

• Examination will be conducted for 100 marks with question paper containing 10 full questions, each of 20 marks.
• Each full question can have a maximum of 4 sub questions.
• There will be 2 full questions from each module covering all the topics of the module.
• Students will have to answer 5 full questions, selecting one full question from each module.
• The total marks will be proportionally reduced to 60 marks as SEE marks is 60.

Text Books:

1. Microwave Engineering - Annapuma Das, Sisir K Das, TMH, Publication, 2nd, 2010.

2. Microwave Devices and circuits- Samuel Y Liao, Pearson Education

3. Antennas and Wave Propagation- John D. Krauss, Ronald J Marhefka, Ahmad SKhan, 4th Edition, McGraw Hill Education, 2013

Reference Books:

1. Microwave Engineering- David M Pozar, John Wtley India Pvt Ltd., 3rd Edn,2008.

2 Microwave Engineering- Sushrut Das, Oxford Higher Education, 2nd Edn,2015

3. Antennas and Wave Propagation- Harish and Sachidananda: Oxford University Press, 2007