Czech

Not applicable.

After successful passing the final exam, the student should be able to:
- calculate power, voltage and current levels in decibels
- describe important electrical parameters of wire, coil and capacitor from the high frequency point of view
- explain behavior and electrical parameters of series and parallel resonant circuit as well as coupled resonant circuits
- explain principle and show examples of lumped element filters
- using the Smith chart, explain principle of impedance transformation with parallel resonant circuit, L-network, T-network and PI-network
- explain principle and describe important parameters of attenuator, HF power combiner and switch
- explain terms: stability and gain of linearized amplifier
- explain and calculate with important parameter of amplifier (dynamic range, intercept point, 1dB compression, noise figure)
- explain terms: mixer and its output spectrum, conversion loss, conversion gain, image frequency and draw basic mixer schematics
- explain principle of feedback oscillators and draw basic schematics of LC and crystal oscillators
- explain terms: phase noise and stability of HF signal
- draw basic schematics of PLL and DDS syntehsizers
- explain principle and important parameters of PLL and DDS systems

The student should be able to:
- explain basics of electronic circuits and electromagnetic waves and transmission lines (inductance, capacitance, impedance, refflection coefficient, Smith chart, standing wave ratio)
- analyze basic electronic circuits with passive components
- calculate with complex numbers and logarithms

Not applicable.

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

- measurements in laboratory: 20 points (5 exercises x 4 pts)
- written tests: 1x14 points
- final exam: 66 points
The final exam consists of 2 parts: 30 points in theoretical part, 36 points in numerical examples. The student must get min. half points of each part to pass the exam successfully.

1) Gain and signal level (introduction to decibels). Series and parallel resonant circuit.
2) High frequency properties of RLC components. Impedance transformation using parallel resonant circuit.
3) Coupled resonant circuits and filters. Power and impedance matching using L, T and PI-match.
4) Power splitters and combiners, attenuators and HF switches.
5) Linearized transistor model. S-parameters. Biasing circuits.
6) Stability, stability circles, gain, constant gain circles.
7) Noise in passive and active circuits. Noise temperature, noise figure and noise beahvior of cascaded circuits.
8) Narrowband and broadband amplifier. Low noise amplifier.
9) Large signal amplifier. Dynamic range, intercept point, 1dB compression.
10) Mixer and its output spectrum. Conversion loss and gain, dynamic range, basic schematics.
11) Frequency stability and phase noise of signal sources. Oscillation conditions and basic schematics of feedback oscillators.
12) Phase locked loop. PLL and DDS synthesizers.

Not applicable.

The aim of the course is to make students familiar with basics of passive and active high frequency circuits.

Evaluation of activities is specified by a regulation, which is issued by the lecturer responsible for the course annually.

Not applicable.

Not applicable.

VÁGNER, P. Vysokofrekvenční technika. Skripta FEKT VUT, 2013. (CS)

HANUS, S., SVAČINA, J. Vysokofrekvenční a mikrovlnná technika. Skripta FEKT VUT v Brně, 2002, ISBN: 80-214-2222-X (CS)
RADMANESH, M., M. Advanced RF & Microwave Circuit Design. AuthorHouse 2010. (EN)
RADMANESH, M., M. RF & Microwave Design Essentials. AuthorHouse 2007. (EN)
ŽALUD, V. Moderní radioelektronika. Vydavatelství BEN, Praha 2000 (CS)