20810138 - ADVANCED ELECTROMAGNETIC COMPONENTS AND CIRCUITS

The course presents the design of electromagnetic components and circuits in modern and advanced applications, including wireless communications, circuits, microwave and optical components and devices, microwave communications and radar, power generation, transfer, and harvesting, with a special emphasis on the innovation brought by artificial electromagnetic materials and metamaterials.
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Programme

The course is organized in 5 units as follows:
PART 1 – EM PROPAGATION AND MATCHING CIRCUITS
EM modeling of guiding structures, Real matching circuits for guiding structures, Narrowband and Wideband matching networks, Wideband binomial and Chebyshev impedance transformers.
PART 2 – MICROWAVE NETWORKS: MODELS AND PROPERTIES
Matrix representations of microwave networks (Matrix ABCD, Impedance and admittance matrices, Scattering matrix and relationships to each other), Scattering matrix [S] of a N-port network, Properties of a component: Reciprocity, Matching and Lossless, Signal flow representation of the scattering matrix, Analysis of a complex microwave network and design of matching networks.
PART 3 – THREE-PORT COMPONENTS
Analysis of a three-port network, Analysis and design of a Circulator, Analysis and design of Power Dividers (Junction dividers, Lossy dividers, Wilkinson dividers) in balanced and unbalanced configuration).
PART 4 – FOUR-PORT COMPONENTS
Analysis of a four-port network, Properties of Directional Couplers (DC), Analysis of symmetric and antisymmetric directional couplers, Analysis of hybrid directional couplers, Design of directional couplers.
PART 5 – DESIGN OF MICROWAVE NETWORKS AND ADVANCED COMPONENTS
Introduction to the design of microwave and millimeter-wave networks. Introduction to the use of electromagnetic and microwave circuit CAD software. Introduction to microwave and millimeter-wave components based on metamaterials for radar, satellite and wireless communication application.

Core Documentation

The text books used as reference for the course are:
1) “Microwave engineering”, author David Pozar, editor Wiley
2) “Electromagnetic Waves and Antennas”, author S.J. Orfanidis (free book online)
3) “Microwave solid state circuit design”, authors: I Bahl e P. Bhartia, editor: Wiley
4) “Foundation of Microwave Engineering”, author: Robert E. Collin, editor: Wiley
5) “The stripline circulator: Theory and practice” , author: J. Helszajn, editor: Wiley

Type of delivery of the course

The course consists of front lessons, exercises, and simulations with PC. It is recommended (not mandatory) to have a PC for analyzing, designing and simulating the microwave networks and circuits presented during the course.

Type of evaluation

The final exam consists of a written test consisting of two parts: PART 1: written presentation and discussion of a topic of the course (the topic is selected by the student among two topics provided by the examination commission). It is 1/3 of the entire exam. PART 2: design of a microwave networks that satisfies the specifications reported in the test (it is possible to see the textbooks and notes). It is 2/3 of the entire exam. The written test is finalized to check the knowledge of the student on the main concepts of the course and to verify its ability to apply them in realistic scenarios.