antenna & radio wave propagation
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8/4/2019 Antenna & Radio Wave Propagation
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C 307RADIO WAVE PROPAGATION&ANTENNA
Theory: 2 hrs/WeekTutorial: -hrs/Week
Year: Third
Antenna (One term)
.hrs4:Electromagnetic Fundamentals)1
Time-varying electromagnetic field equation; non-homogeneous wave equation;
Boundary
condition; Poynting's theorem; or power equation; Solution of maxwell's equations
for radiation problems; field regions; Lorentz reciprocity theorem; Ideal
(infinitesimal) electrical dipole.
.hrs8:Antenna ConceptsBasic)2
Frequency of operation; Radiation pattern and it's parameters; Beam area( beam
solid angle); Effective height; Aperture concept; Antenna polarization; Antennas in
communication links and radar; Antenna noise temperature; Receiving properties of
antennas; Antenna parameters measurement, Field intensity measurements.
.hrs8:Arrays)3
Linear arrays of n isotropic point sources of unequal amplitude and spacing; Linear
arrays of n isotropic point sources of equal amplitude and spacing; Broadside array;
End-fire array; Main beam scanning array Linear arrays of n dipole sources of equal
amplitude and spacing; Pattern Multiplication; Directivity, Gain and Beam width of
an array.
.hrs6:Practical Examples of Antennas)4Small loop antenna; Traveling-wave antennas; Helical antennas; Log-periodic
antenna; Yagi-Uda antennas; Reflector antennas; micro-strip antennas
.hrs4:SittingAntenna)5
Antenna sitting and the effect of perfect ground.
Radio wave propagation (One term)
.hrs8:The Propagation Media)1
The atmosphere; the structure of the atmospheric layers; Electromagnetic propertiesof the layers.
.hrs2:Mode of Wave Propagation)2
Mode of radio wave propagation in communication and radar systems.
.hrs4:tionGround Wave Propaga)3
Ground parameters; propagation equation; propagation problems; applications.
.hrs8:Ionosphere Wave Propagation)4
D-layer attenuation; ionosphere reflective index; Snell's law of refraction; effect of
earth's magnetic field; regular variations of the ionosphere; critical frequency;
maximum usable frequency; virtual height; launch angle; ionosonds; maximum usable
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8/4/2019 Antenna & Radio Wave Propagation
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frequency factor; optimum working frequency; irregular variations of the ionosphere,
fading, HF antennas.
.hrs6:Space Wave Propagation in the Troposphere)5
Effect of earth's curvature reflection; diffraction and atmospheric effects in space
wave propagation; super-refraction; fading; Line-of- side(LOS); Fresnel zone; Radio
Relay Links(RRL).
.hrs2:Scatter Propagation)6
Troposphere scatter radio links; ionoscatter and meteor scatter radio systems;
propagation equations.
Recommended textbook:"
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