Course detail
Microwave Techniques
FEKT-BMVTAcad. year: 2018/2019
The subject introduces circuit techniques in the frequency range up to tens of GHz. The lectures are concentrated on the presentation of basic principles and properties of microwave structures whose knowledge is necessary for the design of devices not only for communication purposes. Laboratory exercises practically familiarize students with individual microwave circuits and measurement methods.
Language of instruction
Number of ECTS credits
Mode of study
Guarantor
Department
Learning outcomes of the course unit
- describe, analyze and design a coax line, and metal rectangular and circular waveguides;
- explain „hybrid microwave integrated circuit“;
- describe basic types of passive microwave integrated structures ( microstrip, coplanar, slot one) and compare them;
- explain „monolithic microwave integrated circuit“;
- describe basic types of microwave resonators (transmission lines resonators, cavity resonators, planar resonators, dielectric resonators);
- explain coupling of cavity resonators to surrounding circuits;
- explain basic principles of a waveguide and cavity resonator excitation;
- analyze and design transmission lines and cavity resonators;
- explain „power divider“ and a principle of Wilkinson power divider;
- explain „directional coupler“, define its basic parameters and explain „quadrature hybrid“;
- explain principles on which waveguide microwave attenuators, phase shifters, and reactance components are based;
- explain „ferrite isolator“ and „ferrite circulator“, explain principles on which they are based and specify areas of their application;
- explain „substrate integrated waveguide“, specify its basic properties and compare it with a rectangular waveguide.
Prerequisites
- compute with complex numbers;
- explain fundamental principles of theory of electromagnetic waves and transmission lines(Maxwell’s equations, propagation of a wave along transmission line, transmission line parameters);
- work with Smith chart.
Co-requisites
Planned learning activities and teaching methods
Assesment methods and criteria linked to learning outcomes
Course curriculum
2. Rectangular waveguides.
3. Circular waveguides, coaxial lines and waveguides.
4. Microwave integrated techniques.
5. Basic kinds of microwave integrated circuits.
6. Transmission line resonators, cavity resonators, resonator and waveguide excitation.
7. Planar and dielectric resonators.
8. Microwave network analysis.
9. Impedance transformers.
10. Power dividers, directional couplers.
11. Microwave attenuators and phase shifters, matched loads, microwave filters.
12. Nonreciprocity microwave ferrite circuits.
13. Substrate integrated waveguide, circuits based on substrate integrated waveguide technology.
Work placements
Aims
Specification of controlled education, way of implementation and compensation for absences
Recommended optional programme components
Prerequisites and corequisites
- recommended prerequisite
EM Waves, Antennas and Lines
Basic literature
Recommended reading
Classification of course in study plans
Type of course unit
Lecture
Teacher / Lecturer
Syllabus
2. Vlnovody obdélníkového průřezu.
3. Vlnovody kruhového průřezu, koaxiální vedení a vlnovody.
4. Mikrovlnná integrovaná technika.
5. Základní typy mikrovlnných integrovaných obvodů (MIO).
6. Rezonátory z úseků vedení, dutinové rezonátory, buzení rezonátorů a vlnovodů.
7. Planární a dielektrické rezonátory.
8. Analýza mikrovlnných obvodů.
9. Impedanční transformátory.
10. Výkonové děliče, směrové vazební členy.
11. Reciproční mikrovlnné zeslabovače a posouvače fáze, bezodrazové zátěže, mikrovlnné filtry.
12. Nereciproční mikrovlnné feritové obvody.
13. Vlnovody integrované do substrátu, obvody na bázi technologie vlnovodů integrovaných do substrátu.
Laboratory exercise
Teacher / Lecturer
Syllabus
2. Měření vlastností mikrovlnných feritových obvodů
3. Měření elektrických vlastností materiálů v mikrovlnném pásmu
4. Vektorový obvodový analyzátor: kalibrace a měření
5. Měření rozptylových parametrů vybraných mikrovlnných obvodů