EE-307-E ANTENNA AND WAVE PROPOGATION
EE-307-E ANTENNA AND WAVE PROPOGATION
CLASS WORK : 50
EXAM : 100
UNIT 1. RADIATION OF ELECTROMAGNETIC WAVES :
Retarded potential, field of short dipole, Antenna pattern & antenna parameters.
UNIT 2. ANTENNA PARAMETERS :
Antenna pattern, Gain, Directivity, Radiation resistance, Aperture, Beam-width etc, Reciprocity theorem for antenna.
UNIT 3. ELEMENTAL ANTENNA:
Wave equation for radiated fields from current and voltage sources in terms of electric scalar potential and magnetic vector potential .Fields and pattern of an infinitesimal dipole. Definition of various potentials used in antenna theory .
UNIT 4. PRACTICAL LINEAR ANTENNAS:
Relation between current distribution and field pattern of an antenna, linear antenna, half wave dipole, Antenna impedance, Directivity, Radiation resistance, Directional properties, Effect of ground on antenna pattern, Input impedance Broad band matching. Mutual impedance .
UNIT 5. ANTENNA ARRAYS :
Two element array, broad side, End fired pattern, Beam width pattern multiplication, multi element array and their properties, Synthesis of an array.
UNIT 6. VARIOUS TYPES OF ANTENNA :
parabolic feeds, conical, helix, log periodic, horn, Microwave antenna .
UNIT 7. PROPAGATION :
Ground waves, Space waves, Effect of Earth, Duct formation, Ionosphere, and sky waves.
Text books : 1. Antennas by J.D.Kraus, TMH.
2. Antenna & Wave Propagation by K.D Prasad.
Ref. books : 1.Antenna & Radiowave Propogation by Collin,TMH
2.Electromagnetic Waves & Radiating Systems by Jordan & Balman, PHI.
Note : Eight questions are to be set – at least one question from each unit. Students have to
attempt five question in all.
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