EC-602 · Antennas and wave Propagation/Official Syllabus
Antennas and wave Propagation (EC-602) - Official Syllabus
1
Unit 1
Radiation
- Potential function and the Electromagnetic field
- potential functions for Sinusoidal Oscillations
- retarded potential
- The Alternating current element (or oscillating Electric Dipole)
- Power radiated by a current element
- Application to short antennas
- Assumed current distribution
- Radiation from a Quarter wave monopole or Half wave dipole
- sine and cosine integral
- Electromagnetic field close to an antenna
- Solution of the potential equations
- Far-field Approximation
2
Unit 2
Antenna Fundamentals
- Introduction
- network theorems
- directional properties of dipole antennas
- travelling-wave antennas and effect of feed on standing-wave antennas
- two-element array
- horizontal patterns in broad-cast arrays
- linear arrays
- multiplication of patterns
- effect of earth on vertical patterns
- Binomial array
- antenna gain
- effective area
3
Unit 3
Types of antennas
- log periodic antenna
- loop antenna
- helical antenna
- biconical antenna
- folded dipole antenna
- Yagi-Uda antenna
- lens antenna
- turnstile antenna
- Long wire antenna: resonant and travelling wave antennas for different wave lengths
- V-antenna
- rhombic antenna
- beverage antenna
4
Unit 4
Aperture and slot
- Radiation from rectangular apertures
- Uniform and Tapered aperture
- Horn antenna
- Reflector antenna
- Aperture blockage
- Feeding structures
- Slot antennas
- Microstrip antennas - Radiation mechanism - Application
- Numerical tool for antenna analysis
5
Unit 5
Propagation of radio waves
- Fundamentals of electromagnetic waves
- effects of the environment
- modes of propagation
- Ground wave propagation- Introduction, plane earth reflection, space wave and surface wave
- transition between surface and space wave
- tilt of wave front due to ground losses
- Space wave propagation- Introduction, field strength relation
- effects of imperfect earth, curvature of earth and interference zone
- shadowing effect of hills and buildings
- absorption by atmospheric phenomena
- variation of field strength with height, super refraction
- scattering, tropospheric propagation
- fading, path loss calculations
- Sky wave propagation- Introduction, structural details of the ionosphere
- wave propagation mechanism, refraction and reflection of sky waves by ionosphere, ray path
- critical frequency, MUF, LUF, OF, virtual height, skip distance, relation between MUF and skip distance
Laboratory Experiments
- To Plot the Radiation Pattern of an Omni Directional Antenna.
- To Plot the Radiation Pattern of a Directional Antenna.
- To Plot the Radiation Pattern of a Parabolic Reflector Antenna.
- To Plot the Radiation Pattern of a Log Periodic Antenna.
- To Plot the Radiation Pattern of a Patch Antenna.
- To Plot the Radiation Pattern of a Dipole/ Folded Dipole Antenna.
- To Plot the Radiation Pattern of a Yagi (3-EL/4EL) Antenna.
- To Plot the Radiation Pattern of a Monopole/ WHIP/ Collinear Antenna.
- To Plot the Radiation Pattern of a Broad site Antenna.
- To Plot the Radiation Pattern of a Square Loop Antenna.
Reference Books
- Electromagnetic Waves and Radiating System — Jordan, Balmain — PHI Learning
- Antennas and wave propagation — Krauss — TMH
- Antenna Theory Analysis and Design — Balanis — Wiley India Pvt. Ltd.
- Antennas and wave propagation — Harish, Sachidananda — Oxford University Press
- Antennas and Wave Propagation — Raju — Pearson Education
- Electronic Communication Systems — Kennedy — TMH
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