video lectures on antenna and wave propagation

Space wave propagation - Reflection from ground for vertically and horizontally polarized waves. Ray path,, ionospheric propagation, skip distance, virtual height, critical frequency, MUF, fading, diversity. atmospheric effects, structure of ionosphere, and its effect on radio waves. Wave Propagation: Propagation of radio waves, mode of propagation Ground wave propagation- Attenuation characteristics for ground wave propagation, Calculation of field strength at a distance. Antenna Arrays: Analysis of uniformly spaced arrays with uniform and non-uniform excitation amplitudes, extension to planar arrays, Binomial arrays.ġ0. Measurement of radiation resistance, S parameter.ĩ. Antenna Measurements: Antenna Radiation pattern measurements, Measurement of antenna beam width and gain, Polarization measurements. Microstrip Antennas: Basic characteristics of microstrip antennas, feeding methods, methods of analysis, design of rectangular patch antennas.Ĩ. Reflector antennas: Parabolic reflectors and reflector optics.ħ.

Broadband Antennas: Broadband concept, Log-periodic antennas, frequency independent antennas.Ħ. Travelling Wave antennas: Analysis and Design of Rhombic antennas and V antenna.ĥ. Aperture Antennas: Huygens’ principle, radiation from rectangular and circular apertures, design considerations, Babinet’s principle, Radiation from sectoral and pyramidal horns, design concepts, Fourier Transformation in aperture antenna.Ĥ. Radiation from Wires and Loops: Infinitesimal dipole, finite-length dipole, dipoles for mobile communication, small circular loop.ģ. Fundamental Concepts: Concept of Radiation (physical meaning), Potential functions & Electromagnetic field, Network Theorems, Radiation Pattern, near-field and far-field regions, basic parameters of antenna (directivity, gain, beam-width, effective aperture, polarization, input impedance, radiation efficiency, radiation resistance and efficiency etc.), Friis transmission equation, Methods of Excitation.Ģ. On successful completion of the course, students will be able to:Ī) Able to explain the basic concept of antennaī) Able to design the antenna for given applicationĬ) Able to characterise and analyse the antenna from antenna parametersġ. Knowledge of radio wave propagation in atmosphere

Providing knowledge of different types of antenna. This course covers in depth knowledge of Basic antenna principals, concepts of antenna wave propagation, antenna theory, design and measurements.

Video lectures on antenna and wave propagation