Course detail

HF techniques and antennas

FEKT-BVSTAcad. year: 2011/2012

Basic HF circuits below 1 GHz: amplifiers, modulators, demodulators. Basic microwave circuits above 1 GHz: filters, amplifiers. Commercial software for modeling and design of microwave circuits.Propagation of EM waves in homogeneous and non-homogeneous environment. propagation of EM waves along transmission lines and in real terrain. Radiation of EM waves. basic types of antennas and their parameters. Matching and symetrization circuits.

Language of instruction

Czech

Number of ECTS credits

6

Mode of study

Not applicable.

Guarantor

prof. Ing. Miroslav Kasal, CSc.

Department

Department of Radio Electronics (UREL)

Learning outcomes of the course unit

Understanding principles of radiation and propagation of EM waves. Knowledge of important types of antennas and their parameters. Understanding symetrization and matching circuits.
Knowledge of basic HF ciruits (below 1 GHz). knowledge of basic microwave circuits (above 1 GHz). Ability to explore commercial programs for modelling of HF circuits and antennas.

Prerequisites

The subject knowledge on the secondary school level is required.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

The student can obtain up to 20 points in laboratory execrises and computer one. At the exam, maximally 80 points can be obtained.

Course curriculum

Not applicable.

Work placements

Not applicable.

Aims

Describing basic HF ciruits (below 1 GHz). Describing basic microwave circuits (above 1 GHz). Explaining principles of radiation and propagation of EM waves. Describing important types of antennas and their parameters. Introducing symetrization and matching circuits to students. Introducing commercial programs for modelling of HF circuits and antennas.

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

The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

RAIDA, Z., HANUS, S. Vysokofrekvenční technika a antény. Edice "Elektronická skripta". Brno: FEKT VUT v Brně, 2002. (CS)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EECC Bc. Bachelor's

    branch B-TLI , 3 year of study, winter semester, elective specialised

  • Programme EEKR-CZV lifelong learning

    branch EE-FLE , 1 year of study, winter semester, elective specialised

Type of course unit

 

Lecture

39 hod., optionally

Teacher / Lecturer

prof. Ing. Miroslav Kasal, CSc.

Syllabus

HF circuits. Specifics of design of HF circuits. Elements used in HF circuits.
Active HF circuits. Design of linearized amplifier.
Non-linear HF circuits (modulators, demodulators, frequencz shifters).
Microwave circuits. Microstrip as basic building block. Substrates for manufacturing microstrip circuits.
Passive microstrip circuits. Transitions coaxial line - microstrip, waveguide - microstrip. Basic types of microstrip filters.
Active microwave circuits. Design of linearized amplifier.
Specifics of design and modeling in the area of antennas and microwave techniques. Basic laws used in design and modeling of microwave circuits and antennas.
Propagation of EM wave. Plane and spherical wave in homogeneous environment.
propagation of EM waves in non-homogeneous environment. Waves in real terrain.
Basic types of transmission lines (symetrical two-wire line, coaxial line, waveguides). Matching (shunts, impedance transformers).
Radiation of EM waves. Modeling and design of wire antennas.
Basic types of antennas (antennas for SW, VSW and microwave band). Supporting circuits (symetrization circuits, matching circuits).
Overview of commercial software for design and modeling of microwave circuits.

Exercise in computer lab

13 hod., compulsory

Teacher / Lecturer

prof. Ing. Miroslav Kasal, CSc.

Syllabus

Introductory lesson.
Modeling of microwave transmission lines (waveguides, microstrip lines).
Modeling and design of wire antennas.
Modeling and design of microstrip antennas.
Passive HF circuits: design of microstrip band-pass filter.
Active HF circuits: design of linearized amplifier.

Laboratory exercise

13 hod., compulsory

Teacher / Lecturer

prof. Ing. Miroslav Kasal, CSc.

Syllabus

Introductory lesson.
Measuring parameters of coaxial cables.
Transformation properties of transmission lines.
Measuring parameters of antennas.
Measuring parameters of passive HF circuits.
Measuring parameters of active HF circuits.