Subject Details
Dept     : ECE
Sem      : 6
Regul    : R 2023
Faculty : Dr.J.GEETHA RAMANI
phone  : 9999999999
E-mail  : hod.a3ncs@snsct.org
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Lecture Notes

UNIT 1:
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Antenna Radiation Mechanism : Isotropic radiator
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Antenna parameters : Radiation Intensity, Radiation pattern, Gain and Directivity, FBR, Effective Length, Radiation Resistance
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Antenna Impedance, Polarization, Beam width, Bandwidth, Antenna temperature- Friis transmission formula
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Retarded Potential
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Wire Antennas: Short Electric Dipole
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Radiation from an alternating current element
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Half - wave Dipole, Quarter wave monopole
UNIT 2:
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Types of arrays - Broad side, End fire, Collinear, Parasitic arrays.
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Arrays of two point sources- Broadside
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Arrays of two point sources- End fire
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Array of N elements with equal spacing and currents equal in magnitude and spacing (broad side array)
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Array of N elements with equal spacing and currents equal in magnitude but with progressive phase shift (end fire array)
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Hansen-Woodyard array
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Pattern Multiplication
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Binomial arrays