Syllabus

Module1:

Antenna Basics: Introduction, Basic Antenna Parameters – Patterns, Beam Area,
Radiation Intensity, Beam Efficiency, Directivity-Gain-Resolution, Antenna Apertures,
Effective Height, Illustrative Problems. Fields from Oscillating Dipole, Field Zones, Front -
to-back Ratio, Antenna Theorems, Radiation, Retarded Potentials – Helmholtz Theorem
Thin Linear Wire Antennas – Radiation from Small Electric Dipole, Quarter Wave
Monopole and Half Wave Dipole – Current Distributions, Field Components, Radiated Power,
Radiation Resistance, Beam Width, Directivity, Effective Area and Effective Height, Natural
Current Distributions, Far Fields and Patterns of Thin Linear Centre-fed Antennas of Different
Lengths, Illustrative Problems. Loop Antennas - Introduction, Small Loop, Comparison of Far
Fields of Small Loop and Short Dipole, Radiation Resistances and Directivities of Small Loops
(Qualitative Treatment)
10 Hours

Module2:

Antenna Arrays: Point Sources – Definition, Patterns, arrays of 2 Isotropic Sources
- Different Cases, Principle of Pattern Multiplication, Uniform Linear Arrays – Broadside
Arrays, End fire Arrays, EFA with Increased Directivity, Derivation of their Characteristics
and Comparison, BSAs with Non-uniform Amplitude Distributions – General Considerations
and Binomial Arrays, Illustrative Problems.Antenna Measurements: Introduction, Concepts - Reciprocity, Near and Far Fields, Coordinate System, Sources of Errors. Patterns to be Measured, Directivity Measurement, Gain Measurements (by Comparison, Absolute and 3-Antenna Methods
13 Hours

Module3:
Module-3 VHF, UHF and Microwave Antennas - I : Arrays with Parasitic Elements, YagiUda Array, Folded Dipoles and their Characteristics, Helical Antennas – Helical Geometry,
Helix Modes, Practical Design Considerations for Mono filar Helical Antenna in Axial and
Normal Modes, Horn Antennas – Types, Fermat’s Principle, Optimum Horns, Design
Considerations of Pyramidal Horns, Illustrative Problems.

7 Hours

Module4:
Module 4:VHF, UHF and Microwave Antennas - II: Microstrip Antennas – Introduction,
Features, Advantages and Limitations, Rectangular Patch Antennas – Geometry and
Parameters, Characteristics of Microstrip Antennas. Reflector Antennas – Introduction, Flar Sheet and Corner Reflectors, Paraboloidal Reflectors – Geometry, Pattern Characteristics, Feed Methods, Reflector Types – Related Features, Illustrative Problems

10 Hours

To understand the concept of radiation, antenna definitions and significance of antenna parameters, to derive and
analyze the radiation characteristics of thin wire dipole antennas and solve numerical problems.

To distinguish between UHF, VHF and Microwave Antennas, their requirements, specifications, characteristics and
design relations.

To analyze the characteristics of yagi-uda antennas, helical antennas, pyramidal horns, microstrip patch antennas and
parabolic reflectors and identify the requirements to facilitate their design.

To identify the antenna array requirements, to determine the characteristics of ULAs and estimate the patterns of
BSA, EFA, and Binomial Arrays.

1)Explain the mechanism of radiation, distinguish between different antenna
characteristic parameters, establish their mathematical relations,Distinguish
between short dipoles, half-wave dipoles, quarter-wave mono poles and small
loops, configure their current distributions,

2. Characterize the antennas based on frequency, configure the geometry and
establish the radiation patterns of folded dipole, Yagi-Uda Antenna, Helical
Antennas, Horn Antennas, and to acquire the knowledge of their analysis,
design and development.

3. Analyze a microstrip rectangular patch antenna and a parabolic reflector
antenna, identify the requirements and relevant feed structure, carry out the
design and establish their patterns.

4. Carry out the Linear Array Analysis, estimate the array factor and
characteristics and sketch the pattern for 2-element array, N-element BSA,
EFA, modified EFA, Binomial Arrays.

C. A. Balanis:, "Antenna Theory Analysis and Design", John Wiley, 3rd Edition, 2009

R.S. Elliott, , Antenna Theory and Practice, , Cambridge University Press, 2008.

Kraus and R.J. Marhefka, "Antennas and Wave propagation, ", McGraw Hill, TMH, 5th" Edition, 2017

. Stutzman and Thiele, Antenna Theory and Design, ", 3rdEd, John Wiley and Sons,2012