Unit ADVANCED DESIGN OF RF AND MICROWAVE SYSTEMS
- Course
- Electronic engineering for the internet-of-things
- Study-unit Code
- 70A00099
- Curriculum
- Elettronica per l'aerospazio
- Teacher
- Cristiano Tomassoni
- Teachers
-
- Cristiano Tomassoni
- Hours
- 48 ore - Cristiano Tomassoni
- CFU
- 6
- Course Regulation
- Coorte 2017
- Offered
- 2017/18
- Learning activities
- Caratterizzante
- Area
- Ingegneria elettronica
- Academic discipline
- ING-INF/02
- Type of study-unit
- Opzionale (Optional)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- ITALIAN
- Contents
The aim of the course is to show the design techniques for microwave systems with particular attention to impedance adapters and filters. The course will illustrate different design techniques and different implementation technologies- Reference texts
*Microwave Filters for Communication Systems: Fundamentals, Design, and Applications, 2nd Edition
Richard J. Cameron , Chandra M. Kudsia , Raafat R. Mansour
*Microwave Filters, Impedance-Matching Networks, and Coupling Structures,
George L. Matthaei, Leo Young, E. M. T. Jones
Artech House Books, 1980
*Slides written by the teacher.- Educational objectives
The aim of the course is to provide the student with the ability to design advanced systems using complex project techniques. This includes both the knowledge of mathematical modeling techniques and the ability to use C.A.D. Software.- Prerequisites
To understand the arguments of this course, a basic knowledge of electromagnetic fields and knowledge of transmission line theory is required.- Teaching methods
Teaching is organized as follows:
Frontal teaching where theory and design methods are explained. Exercises with the use of C.A.D. for full-wave component simulation. Students will design a microwave component by using CAD programs.- Other information
No additional information- Learning verification modality
Oral examination- Extended program
Impedance-Matching Networks: Quarter-wave impedance transformer. Theory of small reflections. Multi-section transformers. Binomial transformer. Logarithmic approximation of the Binomial transformer. Chebyshev transformer. Logarithmic approximation for the Chebyshev transformer. Use of the tables for the design of Impedance-Matching Networks. Prototype low pass filters. Butterworth, Chebyshev and Cauer responses and their comparison. Ladder-circuit low pass filter prototypes. Denormalization of filters in frequency and in reference impedance. High-pass low-pass, low-pass-band-pass, low-pass-band transformations. Richards periodic transformation. Recalls on the ABCD matrix. Kuroda Identity. Filter transformations using Kuroda identity. Recall on microstrip technology. Realization of the lumped element low pass with semi lumped components: Use of short high impedance and low impedance lines for the realization of low pass filters. Impedance inverters. Characterization of impedance and admittance inverters via ABCD matrix, Z matrix, Y matrix and scattering matrix. Implementation of inverters through lumped elements, quarter wave transmission lines and mixed networks. Transformations from series to parallel resonator (and vice versa) using impedance / admittance inverters. Equivalent circuit for resonant cavity filters: transformation from passband filter made of series and parallel resonators to filter made of impedance inverters and resonant series resonators all resonating at the same frequency. Equivalence between resonators with transmission lines and resonators and lumped series or parallel resonator. Slope parameter. Slope parameter for half wave lines closed on short and open circuit. Waveguide filters and microstrip filters. Basic notions on wireless power transfer and relation with equivalent circuit of filters. Equivalent circuit of filters obtained with coupled inductors. Basic knowledge on the coupling matrix.