We will keep on updating this post with latest papers. These papers are useful to all the Engineering colleges which are affiliated to Dr. Abdul Kalam Technical University, formerly known as Uttar Pradesh Technical University) BE/B Tech (Bachelor of technology) First Semester, Second Semester, Third Semester and Fourth Semester, Fifth Semester, Sixth Semester, Seventh Semester and Eight Semester (1st Sem, 2nd sem, 3rd sem1 4th sem, 5th sem, 6th sem, 7th sem & 8th sem) 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011 & 2010 Previous Question Papers. Wave Propagation-II : Sky wave propagation – Introduction, Structure of Ionosphere, Refraction and reflection of sky waves by ionosphere, Ray path, Critical frequency, MUF, LUF, OF, Virtual height and Skip distance, Relation between MUF and Skip distance, Multi-hop propagation.We uploaded AKTU (Dr.
Space wave propagation – Introduction, Field strength variation with distance and height, Effect of earth’s curvature, Absorption, Super refraction, M-curves and Duct propagation, Scattering phenomena, Tropospheric propagation. Wave Propagation-I: Introduction, Definitions, Categorizations and general classifications, Different modes of wave propagation, Ray/Mode concepts, Ground wave propagation (Qualitative treatment) – Introduction, Plane earth reflections, Space and surface waves, Wave tilt, Curved earth reflections. Antenna Measurements: Introduction, Concepts – Reciprocity, Near and far fields, Coordinate system, Sources of errors, Patterns to be measured, Directivity measurement, Gain measurements (by Comparison, Absolute and 3-Antenna methods). Reflector antennas – Introduction, Flar sheet and corner reflectors, Paraboloidal reflectors – Geometry, Pattern characteristics, Feed Methods, Reflector Types – Related Features, illustrative problems.Īntenna Arrays: Point sources – Definition, Patterns, Arrays of 2 isotropic sources – Different cases, Principle of pattern multiplication, Uniform linear arrays – Broadside arrays, End fire arrays, EFA with increased directivity, Derivation of their characteristics and comparison, BSAs with non-uniform Amplitude distributions – General considerations and Binomial arrays, Illustrative problems.
#Antenna and wave propagation ou syllabus pdf Patch#
VHF, UHF and Microwave Antennas-II: Microstrip Antennas-Introduction, Features, Advantages and limitations, Rectangular patch antennas-Geometry and parameters, characteristics of Microstrip antennas. VHF, UHF and Microwave Antennas-I: Arrays with parasitic elements, Yagi-uda array, Folded dipoles and their characteristics, Helical antennas – Helical geometry, Helix modes, Practical design considerations for monofilar helical antenna in axial and normal modes, Horn antennas – Types, Fermat’s principle, Optimum horns, Design considerations of Pyramidal horns, Illustrative problems. Loop antennas-introduction, Small loop, Comparison of far fields of small loop and Short Dipole, Radiation Resistances and Directivities of small loops (Qualitative treatment). Thin Linear Wire Antennas: Radiation from small electric dipole, Quarter wave monopole and half wave dipole – current distributions, Field components, Radiated power, Radiation resistance, beam width, Directivity, Effective area and effective height, Natural current distributions, Far fields and patterns of thin linear centre-fed antennas of different lengths, Illustrative problems. Fields from oscillating dipole, Field zones, Front-to-back ratio, Antenna theorems, radiation, Retarded potentials- Helmholtz theorem.
Antenna Basics: Introduction, Basic antenna parameters - Patterns, Beam area, Radiation intensity, Beam efficiency, Directivity-gain resolution, Antenna apertures, Effective height, Illustrative problems.
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