440-4112/02 – High Frequency Electronics (VE)
| Gurantor department | Department of Telecommunications | Credits | 4 |
| Subject guarantor | Dr. Ing. Libor Gajdošík | Subject version guarantor | Dr. Ing. Libor Gajdošík |
| Study level | undergraduate or graduate | Requirement | Optional |
| Year | 1 | Semester | summer |
| | Study language | English |
| Year of introduction | 2015/2016 | Year of cancellation | 2022/2023 |
| Intended for the faculties | FEI | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
To make familiary the students with the basic electronic circuits used in the radio frequency area.
Teaching methods
Lectures
Tutorials
Experimental work in labs
Summary
The subject is focused on the basic electronic circuits in the radio frequency area. Firstly are expained the basic types of the modulations and their properties, the properties of the real devices at high frequencies, selective filters used in the radio frequency area. After that are explained the circuits of the electronic oscillators, mixers, high frequency amplifiers, frequency multipliers, modulators and demodulators and their possibilities of the using in radio receivers and transmitters.
Compulsory literature:
Storey N.: Electronics : a systems approach, Pearson Education, Harlow, 2013
Recommended literature:
Tietze U., Schenk Ch., Gamm E.: Electronic circuits : handbook for design and application, Springer, Berlin, 2008
Additional study materials
Way of continuous check of knowledge in the course of semester
Test 1, Test 2, laboratory reports, and work out the project.
E-learning
Other requirements
Student should be skilled to design and analyse simlple electronic circuits and to know the function and applications of basic semiconductor devices.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
1. Active and pasive devices, equivalent circuits with parasitic elements.
2. Resonant circuit and its RF properties. Basics of resonant measuring instruments.
3. RF filters.
4. RF wideband and narrowband amplifiers. Miller capacitance. Parasitic coupling compensation.
5. Function blocks, elementary types of RF oscillators.
6. Modulations of AM, FM, PM. Heterodyne, intermediate frequency, image frequency.
7. Y and S parameters. Definitions, Conversions.
8. Frequency mixers and frequency multipliers. Amplitude limiters.
9. Function blocks, modulators, demodulators, Gilbert cell.
10. RF operational amplifirs, CFA, OTA, current and voltage feedback.
11. Microwave circuits, waveguides, microstrips, YIG.
12. RF circuit analyse methods. Smith chart derivation.
13. Special devices for RF technics, SRD, HEMT, IMPATT, TRAPATT, TWT, klystron, magnetron.
14: Noise in RF circuits, elementary terms.
Exercies:
1. Safety instructions. Calculations of device equivalent circuits. Project assignment - RF oscillator design.
2. Laboratory exercise. Measurement of frequency properties of coil, condenser and resonant circuit.
3. Laboratory exercise. Measurement of frequency characteristic of coupled resonant circuit and ceramic filter.
4. Laboratory exercise. Measurement of the Miller capacitance influence to the frequency characteristic of amplifier.
5. Theory exercise. Antialiasing filter design.
6. Laboratory exercise. Verification of AM and FM properties by generator and FFT oscilloscope.
7. Test 1.
8. Laboratory exercise. Measurement of frequency mixer and frequency multiplier by FFT oscilloscope.
9. Theory exercise. Criteria of stability in circuits. Examples.
10. Laboratory exercise. Frequency characteristic measurement of OTA based amplifier.
11. Laboratory exercise. Measurement in waveguide at 10 GHz.
12. Evaluation of assigned project.
13. Test 2.
14. Credit.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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