UNIT 1:
Antenna Radiation Mechanism : Isotropic radiator
Antenna parameters : Radiation Intensity, Radiation pattern, Gain and Directivity, FBR, Effective Length, Radiation Resistance
Antenna Impedance, Polarization, Beam width, Bandwidth, Antenna temperature- Friis transmission formula.
Retarded Potential - Wire Antennas: Short Electric Dipole
Retarded Potential - Wire Antennas: Short Electric Dipole
Radiation from an alternating current element
Half - wave Dipole, Quarter wave monopole
UNIT 2:
Arrays of two point sources
Types of arrays - Broad side, End fire, Collinear, Parasitic arrays.
Arrays of two point sources
Array of N elements with equal spacing and currents equal in magnitude and spacing (broad side array)
UNIT 3:
Slot antenna-Relation between dipole and slot impedances
Log-Periodic Antennas for Wideband Communication
Parabolic reflector antennas and its feed systems
Case study: Smart Antennas
Relation between dipole and slot impedances