![]() ![]() When getting this book Antenna And Wave Propagation, By Dr. Solar activity and meteorological conditions on wave propagation.Ebook Download Antenna and Wave Propagation, by Dr. Effect of earth's magnetic field and Faraday rotation. ![]() Critical frequency, virtual height, skip distance, maximum usable frequency. IONOSPHERIC PROPAGATION: Various ionospheric layers, Electrical properties of the ionosphere and their effects on wave propagation. Tropospheric propagation, duct propagation and tropospheric scattering. Refraction and diffraction of radio waves. Theory of ground reflection- Plane earth reflection, reflection factors for horizontal and vertical polarizations. GROUND WAVE PROPAGATION- Mechanism of radio wave propagation. Antenna Measurements- Antenna radiation pattern, gain, directivity and polarization. Microstrip patch antennas- Rectangular patch antenna, Twoelement microstrip patch. Slot, Horn and Lens antennas, Helical antennas. Reflector antennas –Flat sheet, corner and parabolic reflector antennas. Broadband antennas – Broadband basics, log-periodic dipole array. Monopole antenna, Small loop antenna, Folded dipole and Yagi-Uda antenna. ![]() DIFFERENT TYPES OF ANTENNAS– Thin linear antenna and thin halfwave dipole. Two element array of elementary dipoles- Excitation with different relative phase shift and for different spacing. N-element linear array of elementary dipoles and principle of pattern multiplication. Uniform array of N point sources and array factor –Examples of 4 element broadside and endfire arrays. ![]() ANTENNA ARRAYS– Point source, Array of two isotropic point sources. Receiving antenna- Reciprocity, effective length and aperture, antenna temperature. Basic antenna parameters - Radiation pattern, beamwidth, beam solid angle, directivity, efficiency, gain, radiation intensity, radiation resistance, input impedance and polarization. ANTENNA FUNDAMENTALS– Review of Electromagnetic theory. ![]()
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