Course detail

Antennas and Applications

FEKT-MASVAcad. year: 2011/2012

Lectures and exercises:
" Quarter-wave dipole and LW and MW propagation
" Modifications of wire dipole on SW band
" Antennas for VHF and UHF bands
" Multi-band antennas on UHF and microwaves
" Wide-band antennas on UHF and microwaves
" Circularly-polarized antennas
" Directional antennas for UHF and microwaves
" Antennas for special applications
" Miniaturization of antennas
" Construction parts of antennas
" Measurements of antennas
" Antenna matching circuits
Laboratories schedule:
" Directivity measurement in free-space. Directivity measurement in anechoic chamber. LPDA vector analyzer measurement.
" Magnetic loop antenna, resonant frequency, impedance and power matching.
" Current distribution on linear antenna.
" Impedance matching on SW antennas, Measurement of matching circuits.
" Impedance matching of microstrip antenna
" Circularly polarized antennas, directivity pattern measurement.
" Horn antenna.
Comments:
The aim of the subject is focused to practical aspects of the antennas techniques from ones kilohertz to tenth gigahertz. The students can design a wire and planar antennas, which can meet in daily practice. In computer practice students designed their own antennas, which will be manufactured and measured. In laboratories, the knowledge of impedance, directivity pattern, quality factor and polarization is presented. Directivity pattern of the antennas is in anechoic chamber measured.

Language of instruction

Czech

Number of ECTS credits

7

Mode of study

Not applicable.

Guarantor

Ing. Zbyněk Lukeš, Ph.D.

Department

Department of Radio Electronics (UREL)

Learning outcomes of the course unit

The students become familiar with the main antenna types, their properties and applications, design of antennas and of their auxiliary circuits, calculation of field strength and other properties of radio waves and basic procedures for measurement of antennas and radio waves.

Prerequisites

The subject knowledge on the Bachelor´s degree level is requested.

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

2 projects, laboratory protocols, 2 unobligatore tests in numerical exercices, combine exam

Course curriculum

" Quarter-wave dipole and LW and MW propagation
" Modifications of wire dipole on SW band
" Antennas for VHF and UHF bands
" Multi-band antennas on UHF and microwaves
" Wide-band antennas on UHF and microwaves
" Circularly-polarized antennas
" Directional antennas for UHF and microwaves
" Antennas for special applications
" Miniaturization of antennas
" Construction parts of antennas
" Measurements of antennas
" Antenna matching circuits

Ionospheric propagation, design of ionospheric link and operational frequency
Tropospheric scattering communication, atmospheric losses, properties of microwave links
Calculation of field strength and reliability, conditions of radio communication
Broadcast antennas for LW and MW, short-wave antennas
Antennas for UHF band, matching and balancing
Microwave antennas. Extremely wideband antennas
Signal processing antennas, adaptive antennas
Electronic scanning, near-field measurement

Work placements

Not applicable.

Aims

The aim of the course is to make students familiar with the main antenna types, with their properties and applications, design of antennas and of their auxiliary circuits, calculation of field strength and other properties of radio waves and basic procedures for measurement of antennas and radio waves.

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

ČERNOHORSKÝ,D. a NOVÁČEK,Z.: Antény a šíření rádiových vln. Přednášky. Skriptum FEKT VUT Brno, Brno 2001 (CS)
ČERNOHORSKÝ,D. a NOVÁČEK,Z. Navrhování rádiových spojů. Skriptum FE VUT Brno, Brno 1992. (CS)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EEKR-M Master's

    branch M-EST , 1. year of study, winter semester, optional specialized

  • Programme EEKR-CZV lifelong learning

    branch ET-CZV , 1. year of study, winter semester, optional specialized

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

Ing. Zbyněk Lukeš, Ph.D.

Syllabus

Current distribution on linear antennas, aperture illumination
Antenna array pattern, its optimization and synthesis
Impedance of linear antennas and of antenna arrays. Losses and efficiency of antenna
Radio waves reception, receiving antennas, polarization, antenna parameters
Propagation along the earth surface. Surface- and space-waves, obstacle losses
Ionospheric propagation, design of ionospheric link and operational frequency
Tropospheric scattering communication,atmospheric losses, properties of microwave links
Calculation of field strength and reliability, conditions of radio communication
Broadcast antennas for LW and MW, short-wave antennas
Antennas for UHF band, matching and balancing
Microwave antennas. Extremely wideband antennas
Signal processing antennas, adaptive antennas
Electronic scanning, near-field measurement

Exercise in computer lab

26 hours, compulsory

Teacher / Lecturer

Ing. Zbyněk Lukeš, Ph.D.

Syllabus

Antenna array pattern
Input impedance of antennas and of antenna arrays
Losses and efficiency of antenna. Antenna parameters
Design of antenna array, matching
Propagation of surface- and space-wave, obstacle losses
Sky-wave propagation, sky-wave link design
Radio wave reception, radio link design

Laboratory exercise

26 hours, compulsory

Teacher / Lecturer

Ing. Zbyněk Lukeš, Ph.D.
Ing. Tomáš Mikulášek, Ph.D.

Syllabus

Radiation pattern and input impedance of UHF antennas
Field strength of broadcast and TV transmitters
Properties of signal with fading
Current distribution on linear antennas
Properties of ferrite antenna
Splitters and balancing circuits
Radiation pattern and impedance of microwave antennas
Polarization properties of antenna