Subject description - AD2B17VFM

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AD2B17VFM Radiofrequency Measurement
Roles:  Extent of teaching:14+6L
Department:13117 Language of teaching:CS
Guarantors:  Completion:Z,ZK
Lecturers:  Credits:6
Tutors:  Semester:Z

Web page:

http://www.elmag.org/cs/vyuka/A2B17VFM-vysokofrekvencni-mereni

Anotation:

The subject guides students to gain both theoretical and practical skills in radiofrequency and microwave measurements. It is focused on measurement methods and instruments applied e.g. in telecommunication, radio, radar, cable network, navigation, and other systems working in frequency band from units of MHz to 50 GHz, thus from classical radio to microwave area. Students are informed about basic principles and construction of generators, synthesizers, frequency counters, vector generators, spectrum, signal, scalar and vector analyzers and their applications in various measurement methods. Theoretical knowledge from lectures are supplemented by practical measurements in laboratories equipped with modern instruments applied in current professional practice.

Study targets:

The subject guides students to gain both theoretical and practical skills in radiofrequency and microwave measurements.

Course outlines:

1. Basic measured parameters of rf. Circuits in frequency and time domain, importance of impedance matching. Basic diversity from low frequency measurements.
2. Components for rf. Measurements, transfer media, connectors, adapters, attenuators, power dividers, directional couplers, calibration elements
3. Free running rf, generators, synthesizers
4. Vector generators (modulators) and analyzers of signals, measurement of modulations
5. Rf. detectors, bolometers and thermo couplers, measurement of voltage and power
6. Rf. oscilloscopes, measurement in time domain
7. Measurement of frequency, frequency counters
8. Spectrum analyzers, measurement of spectrum and its quality, signal to noise ratio, frequency, power, transmission
9. Scalar network analyzers, measurement of transmissions and reflections
10. Vector network analyzer, vector measurement of s-parameters of passive and active components and circuits, measurement of impedance, Q factor, determination of equivalent circuits of discrete components
11. Measurement of parameters of transfer media (coaxial cable, twisted pair, waveguide, free space) and antennas
12. Measurement of parameters of linear circuits- amplifiers, filters, dividers
13. Measurement of parameters of nonlinear circuits-oscillators, mixers, frequency multipliers
14. Measurement of signals and parameters of rf. and microwave systems

Exercises outline:

1. week. Introduction to rf. And microwave measurement components and basic principles of manipulation
2.-13.  week measurements of exercises 1. to 12
14. week. Final checking of protocols
Exercise 1. Measurement of generators, frequency dependence of power and power stabilization Exercise 2. Measurement of generators, frequency settings and stability Exercise 3. Rf. detectors, calibration, measurement of transmission, 1 kHz modulation Exercise 4. Scalar analyzer I. - measurement of transmissions Exercise 5. Scalar analyzer II. - measurement of reflections Exercise 6. Vector generator, measurement of modulations Exercise 7. Measurement of radiation patterns of antennas Exercise 8. Spectrum analyzer, measurement of rf. background Exercise 9. Spectrum analyzer, measurement of mixer Exercise 10. Slotted line, measurement on waveguide, measurement of impedance Exercise 11. Vector network analyzer, wideband measurement of impedance of SMD components Exercise 12. Rf. oscilloscope, measurement of rf. voltage, measurement in time domain

Literature:

Bryant G. H., Principles of Microwave Measurements, IEE Electrical measurement series 5, Peter Peregrinus Ltd.

Requirements:

Smith chart, telegraph equations, voltage and current distribution along a line. Low frequency measurements in the extend of the subject "Electrical measurement? provided by the department of Measurement. https://moodle.fel.cvut.cz/

Keywords:

rf. technique, s-parameters, scalar measurement, vector measurement, power, spectrum, frequency, generator, synthesizer, counter, analyzer

Subject is included into these academic programs:

Program Branch Role Recommended semester

Page updated 15.3.2025 15:51:03, semester: L/2024-5, Z/2025-6, Z/2024-5, L/2025-6, Send comments about the content to the Administrators of the Academic Programs Proposal and Realization: I. Halaška (K336), J. Novák (K336)
Responsible person: prof. Ing. Jiří Jakovenko, Ph.D.