Radiofrequency Measurement

Vztahy:

During a review of study plans, the course XE37MST can be substituted for the course AE2B17VFM.

Garant předmětu:

Lecturer:

Tutor:

Supervisor:

Department of Electromagnetic Field

Synopsis:

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 50GHz, 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.

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/

Syllabus of lectures:

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

Syllabus of tutorials:

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

Study Objective:

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

Study materials:

Bryant G. H., Principles of Microwave Measurements, IEE Electrical measurement

series 5, Peter Peregrinus Ltd.

Note:

Further information:

http://moodle.fel.cvut.cz

No time-table has been prepared for this course

The course is a part of the following study plans: