Course detail

Microwave Techniques

FEKT-BMVTAcad. year: 2015/2016

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.

Learning outcomes of the course unit

The graduate is able to:
- 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

Students who enroll the course should be able to: - 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

Not applicable.

Recommended optional programme components

Not applicable.

Recommended or required reading

HANUS, S., SVAČINA, J. Vysokofrekvenční a mikrovlnná technika. Skripta FEKT VUT v Brně, 2002. (CS)
TYSL, V., RŮŽIČKA, V. Teoretické základy mikrovlnné techniky. SNTL Praha 1999. (CS)
POZAR, D. Microwave engineering, John Wiley and Sons, New Jersey, 2005. (EN)

Planned learning activities and teaching methods

Techning methods include lectures and practical laboratories. Course is taking advantage of e-learning (Moodle) system.

Assesment methods and criteria linked to learning outcomes

A test written during semester (15 points), laboratory exercises (20 points), written final exam (65 points).

Language of instruction

Czech, English

Work placements

Not applicable.

Course curriculum

1. Introduction to microwave techniques, fundamental microwave transmission structures.
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.

Aims

The subject is aimed to present basic principles of microwave techniques in the frequency range up to tens of GHz, and on practicing practical approaches to computing parameters of basic transmission structures and microwave circuits.

Specification of controlled education, way of implementation and compensation for absences

Evaluation of activities is specified by a regulation, which is issued by the lecturer responsible for the course annually.

Classification of course in study plans

  • Programme EEKR-B Bachelor's

    branch B-EST , 3. year of study, winter semester, 4 credits, compulsory
    branch B-MET , 3. year of study, winter semester, 4 credits, optional interdisciplinary

  • Programme EEKR-CZV lifelong learning

    branch ET-CZV , 1. year of study, winter semester, 4 credits, compulsory

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

Laboratory exercise

13 hours, compulsory

Teacher / Lecturer

eLearning

eLearning: opened course