The course is designed in order to approach the study of antennas on =the basis of the typical knowledge acquired in the Laurea degree courses. I=n particular the study and design of aperture antennas, planar antennas and antenna alignments is accomplishí. It also introduces the problem of electromagnetic scattering both from =structures present in the environment and from scatterers present in the gr=ound. Finally, it is proposed to address the study of the propagation of radio waves and microwaves in the êrth's atmosphere. Areas of application: biomedical, electrical, electroni=c and telecommunications industries.
Curriculum
teacher profile teaching materials
Introduction to arrays. One-dimensional, broad-side, end-fire arrays. Two-dimensional arrays. Power supply networks. Parasitic arrays. Receiving antennas: reciprocity theorem and effective area, Friis transmission formula. Antenna noise temperature. Array design. Chebyshev method, binomial arrays, polynomial arrays. Power supply networks. Butler matrices. Parasitic arrays. Log-periodic arrays.
Aperture antennas: analysis and design. Radiation from a flat aperture. Fourier transform method. Radiation from rectangular and circular openings. Principle of equivalence. Application of the principle of equivalence to aperture radiation. Horn antennas. Radiation from rectangular and circular waveguides. Geometric optics. Microwave lenses. Paraboloid antennas: efficiency, directivity, cross-polarization. Eddy current method. Low cross-polar feeds. Dual reflector systems. Radiation from fissure. Synthesis of fissure alignments. Planar microstrip antennas. Properties of periodic and electromagnetic band-gap artificial media. Application to antennas.
Diffusion of radiation in complex electromagnetic environment and canonical cases. Scattering of a plane wave from a conducting cylinder, polarization E and H. Dielectric cylinder.
Propagation between fixed points: presence of earth, surface waves and reflection from flat surface. Refractive index of a ionized medium. Ray curvature in a ionospheric plasma.
The exercitations are an integral part of the exam program.
A. Paraboni, "Antenne", Mc Graw-Hill Libri Italia.
C. Balanis, "Antenna theory, analysis and design", 3rd edition, Wiley,
Robert E. Collin, "Antennas and Radiowave propagation", McGraw-Hill Book Company.
Programme
Fundamentals of electromagnetic radiation and parameters of an antenna. Short dipole radiation. Radiation from a current loop. Radiation from an arbitrary distribution of current. Lambda dipole means. Antenna impedance. Folded dipole, short dipole and monopole antenna. Receiving antennas. Reciprocity theorem and effective area. Polarization mismatch. Friis transmission formula. Noise in communication systems. Antenna noise temperature.Introduction to arrays. One-dimensional, broad-side, end-fire arrays. Two-dimensional arrays. Power supply networks. Parasitic arrays. Receiving antennas: reciprocity theorem and effective area, Friis transmission formula. Antenna noise temperature. Array design. Chebyshev method, binomial arrays, polynomial arrays. Power supply networks. Butler matrices. Parasitic arrays. Log-periodic arrays.
Aperture antennas: analysis and design. Radiation from a flat aperture. Fourier transform method. Radiation from rectangular and circular openings. Principle of equivalence. Application of the principle of equivalence to aperture radiation. Horn antennas. Radiation from rectangular and circular waveguides. Geometric optics. Microwave lenses. Paraboloid antennas: efficiency, directivity, cross-polarization. Eddy current method. Low cross-polar feeds. Dual reflector systems. Radiation from fissure. Synthesis of fissure alignments. Planar microstrip antennas. Properties of periodic and electromagnetic band-gap artificial media. Application to antennas.
Diffusion of radiation in complex electromagnetic environment and canonical cases. Scattering of a plane wave from a conducting cylinder, polarization E and H. Dielectric cylinder.
Propagation between fixed points: presence of earth, surface waves and reflection from flat surface. Refractive index of a ionized medium. Ray curvature in a ionospheric plasma.
The exercitations are an integral part of the exam program.
Core Documentation
A. Paraboni, M. D’Amico, “Radiopropagazione” Mc Graw-Hill Libri Italia.A. Paraboni, "Antenne", Mc Graw-Hill Libri Italia.
C. Balanis, "Antenna theory, analysis and design", 3rd edition, Wiley,
Robert E. Collin, "Antennas and Radiowave propagation", McGraw-Hill Book Company.
Reference Bibliography
-Attendance
Attendance is important in order to acquire regularly and continuously the concepts of the Course, the theoretical and numerical methods that are applied to both didactic and project cases. Interaction in class promotes attention and effective learning.Type of evaluation
It is possible to take a mid-term test about halfway through the course. If you pass this test, an oral exam will be held on the rest of the course. teacher profile teaching materials
Introduction to arrays. One-dimensional, broad-side, end-fire arrays. Two-dimensional arrays. Power supply networks. Parasitic arrays. Receiving antennas: reciprocity theorem and effective area, Friis transmission formula. Antenna noise temperature. Array design. Chebyshev method, binomial arrays, polynomial arrays. Power supply networks. Butler matrices. Parasitic arrays. Log-periodic arrays.
Aperture antennas: analysis and design. Radiation from a flat aperture. Fourier transform method. Radiation from rectangular and circular openings. Principle of equivalence. Application of the principle of equivalence to aperture radiation. Horn antennas. Radiation from rectangular and circular waveguides. Geometric optics. Microwave lenses. Paraboloid antennas: efficiency, directivity, cross-polarization. Eddy current method. Low cross-polar feeds. Dual reflector systems. Radiation from fissure. Synthesis of fissure alignments. Planar microstrip antennas. Properties of periodic and electromagnetic band-gap artificial media. Application to antennas.
Diffusion of radiation in complex electromagnetic environment and canonical cases. Scattering of a plane wave from a conducting cylinder, polarization E and H. Dielectric cylinder.
Propagation between fixed points: presence of earth, surface waves and reflection from flat surface. Refractive index of a ionized medium. Ray curvature in a ionospheric plasma.
The exercitations are an integral part of the exam program.
A. Paraboni, "Antenne", Mc Graw-Hill Libri Italia.
C. Balanis, "Antenna theory, analysis and design", 3rd edition, Wiley,
Robert E. Collin, "Antennas and Radiowave propagation", McGraw-Hill Book Company.
Programme
Fundamentals of electromagnetic radiation and parameters of an antenna. Short dipole radiation. Radiation from a current loop. Radiation from an arbitrary distribution of current. Lambda dipole means. Antenna impedance. Folded dipole, short dipole and monopole antenna. Receiving antennas. Reciprocity theorem and effective area. Polarization mismatch. Friis transmission formula. Noise in communication systems. Antenna noise temperature.Introduction to arrays. One-dimensional, broad-side, end-fire arrays. Two-dimensional arrays. Power supply networks. Parasitic arrays. Receiving antennas: reciprocity theorem and effective area, Friis transmission formula. Antenna noise temperature. Array design. Chebyshev method, binomial arrays, polynomial arrays. Power supply networks. Butler matrices. Parasitic arrays. Log-periodic arrays.
Aperture antennas: analysis and design. Radiation from a flat aperture. Fourier transform method. Radiation from rectangular and circular openings. Principle of equivalence. Application of the principle of equivalence to aperture radiation. Horn antennas. Radiation from rectangular and circular waveguides. Geometric optics. Microwave lenses. Paraboloid antennas: efficiency, directivity, cross-polarization. Eddy current method. Low cross-polar feeds. Dual reflector systems. Radiation from fissure. Synthesis of fissure alignments. Planar microstrip antennas. Properties of periodic and electromagnetic band-gap artificial media. Application to antennas.
Diffusion of radiation in complex electromagnetic environment and canonical cases. Scattering of a plane wave from a conducting cylinder, polarization E and H. Dielectric cylinder.
Propagation between fixed points: presence of earth, surface waves and reflection from flat surface. Refractive index of a ionized medium. Ray curvature in a ionospheric plasma.
The exercitations are an integral part of the exam program.
Core Documentation
A. Paraboni, M. D’Amico, “Radiopropagazione” Mc Graw-Hill Libri Italia.A. Paraboni, "Antenne", Mc Graw-Hill Libri Italia.
C. Balanis, "Antenna theory, analysis and design", 3rd edition, Wiley,
Robert E. Collin, "Antennas and Radiowave propagation", McGraw-Hill Book Company.
Reference Bibliography
-Attendance
Attendance is important in order to acquire regularly and continuously the concepts of the Course, the theoretical and numerical methods that are applied to both didactic and project cases. Interaction in class promotes attention and effective learning.Type of evaluation
It is possible to take a mid-term test about halfway through the course. If you pass this test, an oral exam will be held on the rest of the course.