THIAGARAJAR COLLEGE OF ENGINEERING: MADURAI – 625 015 ...

detection of signals in noise, Probability of error correlation Receiver, Matched Filter - Detection of
signals with unknown phase
(10 Periods)
Unit – V: Digital Modulation Techniques: Coherent binary PSK, Coherent binary FSK, Coherent
QPSK, Coherent MSK, Noncoherent orthogonal modulation, Noncoherent Binary FSK, Differential PSK
– Comparison of binary and Quarternary modulation schemes - Pseudo noise sequences, A notion of
spread spectrum direct sequence spread spectrum, Signal space dimensionality and processing Gain,
Probability of error, Frequency Hop Spread Spectrum, Code Division Multiplexing.
(10 Periods)
Text Book:
Simon Haykin, “Digital Communications”, John Wiley & Sons, Pvt. Ltd., 2001
Reference Books:
1. John G. Proakis, “ Digital Communication”, Tata McGraw Hill 1995
2. Bernard Sklar, “Digital Communications: Fundamentals and Applications”, 2 nd Edition, Prentice
Hall, 2001
3. John R Barry, Edward Lee and David G. Messerschmitt, “Digital Communication”, 3 rd Edition.
Springer, 2003.
D54 ANTENNA AND WAVE PROPAGATION
Unit I : Antenna fundamentals and Parameters: Introduction -Types of antennas-Radiation mechanismcurrent
distribution-Radiation pattern-power density-radiation intensity-directivity-gain-antenna efficiencybeamwidth
--bandwidth-polarization-radiation efficiency-effective aperture-Friss equation and radar range
equation-antenna temperature-Far field radiation-duality theorem.
(10 Periods)
Unit II: Linear wire and Loop antennas: Linear wire antenna- Infinitesimal dipole-small dipole-finite
length dipole- Half wavelength dipole, Loop antenna- Circular loop antenna of constant current-ferrite
loop.
(10 Periods)
Unit III: Arrays- Planar and Linear: Two-element array - N element linear array-uniform spacing and
amplitude-broadside, end-fire, phased array-N element linear array directivity and characteristics-N
element linear array-uniform spacing and non-uniform amplitude-planar array-circular array.
(10 Periods)
Unit IV: Traveling wave and Broadband Antennas: Folded dipole, V antenna, Rhombic antenna,
Helical antenna, Yagi-uda array of linear elements- Spiral antenna-Log periodic antenna. Concept of Horn
antenna-Parabolic reflector, Antenna measurement- radiation pattern, far and near field measurement-
Anechoic chamber.
(10 Periods)
Unit V: Wave propagation: Fundamental equation for free space propagation—modes of propagationstructure
of atmosphere and characteristics-sky wave propagation-effects of Earths magnetic field-
Application of Bartree magnetic ionic formula-Hartree formula-effective dielectric constant and
conductivity of the ionosphere and collision frequency –lowest Usable frequency-Skip distance-Optimum
working frequency-ionospheric Abnormalities – Multi hop propagations - space wave propagation -Duct
propagation.