Università Roma Tre

Review of arguments of previous courses.

Transmission lines. Telegraphers’ equations and their solution. Impedance, admittance, and reflection coefficients. Voltage Standing Wave Ratio. Examples of use, and application to practical cases. Smith Chart and the relevant use for matching problems.

Cylindrical metallic waveguides. Eigenvalue problems. Propagation of modes. Rectangular waveguides.

Resonators: Resonant circuits (RLC). Cylindrical resonators: resonant frequencies and modal profiles. Effect of losses. Quality factor. Passive junctions.

Basics of computational electromagnetism: numerical methods based on differential and integral formulations in the time and frequency domain. Description of commercial electromagnetic simulators: Ansys HFSS, CST Microwave Studio. Notes on the use of MATLAB in the numerical calculation for applied electromagnetism. Numerical calculation experiences with commercial electromagnetic simulators and MATLAB: numerical and network characterization of frequency selective surfaces and metasurfaces, numerical and network characterization of discontinuities in rectangular waveguides; analytical / numerical study of electromagnetic propagation in periodic rectangular waveguides.

Use of a microwave didactic bench. Description of components. Experimental use of the bench. Measurements relevant to frequency, wavelength, VSWR, antenna measurements.

- F. Frezza, A Primer on Electromagnetic Fields, Springer, 2015.
- Pozar, David M. Microwave Engineering, 4th Edition. Hoboken, NJ: J. Wiley, 2012.
- Notes of the Course.