Radio Circuits and Devices
Code  Completion  Credits  Range  Language 

B2B37ROZ  Z,ZK  4  2P+2L  Czech 
 Corequisite:
 Safety in Electrical Engineering for a bachelor´s degree (BEZB)
Basic health and occupational safety regulations (BEZZ)  Lecturer:
 Tutor:
 Supervisor:
 Department of Radioelectronics
 Synopsis:

The first part contains a basic but systematical description of fundamental types of analog and digital modulations. A description of passive and active elements with nondistributed and distributed parameters follows from the point of view their usage in radio circuits. Attention is devoted to contemporary structures with distributed parameters, microwave transistors of various types, power unipolar transistors, and vacuum tubes used in transmitters. A description of radio function blocks is a fundamental part of the subject: narrow and wideband radiofrequency amplifiers and their noise properties, distributed amplifiers, power amplifiers, oscillators, distributed oscillators, phase noise, crystal oscillators, mixers, double and multiplybalanced mixers, modulators and demodulators and a methodology of their design. The last part contains a description of various types of radio receivers and their auxiliary circuits and also fundamental principles of analysis and optimization of radiofrequency circuits by means of computeraided design.
 Requirements:
 Syllabus of lectures:

1. A detailed description of analog modulations (AM, DSB, and FM), equations in time domain, spectral and energetic properties, stereo in FM, preemphasis and deemphasis.
2. A detailed description of digital modulations (ASK, FSK, and PSK), time domain and basic spectral properties. Constellation diagrams. Other frequently used digital modulations and their properties: GMSK, Pi/4 QPSK, and OFDM. Gray code. Spread spectrum.
3. Highfrequency properties of passive elements C, L, and R. Parasitic elements, their frequency properties, ESR, Q, and modeling their frequency dispersion. Defining passive twoports and threeports by a system of Sparameters.
4. Resonant circuits with lumped and distributed parameters. Other parameters of radio circuits (attenuators, diplexers, phase shifters, etc.)
5. Highfrequency filters with lumped and distributed parameters, SAW and other similar structures. Crystal filters.
6. Lowpower active elements of radio circuits and their description. Highfrequency BJT, HBT, MOSFET, MESFET, pHEMT, and SiGe transistors. Noise properties of highfrequency transistors.
7. Active highpower elements of radio circuits. Highfrequency vacuum tubes (klystron, travelingwave tube, magnetron), power MOSFET and LDMOSFET.
8. Highfrequency narrow and wideband amplifiers and their properties. Methods of using active elements in highfrequency amplifiers (differential pairs, cascode, Distributed amplifiers, fundamental principle. Power radiofrequency amplifiers, power optimization, efficiency optimization etc.
9. Noise properties of radiofrequency circuits. Fundamental physical noise sources and their mathematical description. Noises of passive and active elements of radio circuits. Fundamental ways of noise optimization of RF circuits. Methods of the noise modeling of the elements described by Sparameters. Lownoise amplifiers (LNA).
10. Classical Oscillators in Radioelectronics ((Colpitts, Clapp, Hartley, etc.). Voltagecontrolled oscillators (VCO), PLL. Crystal oscillators, transient. Fundamental diagrams of distributed oscillators.
11. Fundamental diagrams of mixers. Balanced and double balanced mixers. Mixers with diodes, BJTs, and MOSFETS, and a realization of balanced mixers with these elements. Frequency multipliers. A principle of estimating the mixing products using Volterra sequences.
12. Fundamental modulators and demodulators. Demodulators with diodes and transistors. AM, FM demodulators. Synchronous demodulators. A simple example of the numerical analysis of the demodulator.
13. Fundamental types of receivers (crystal, reflex,superreactive). Superhets with single and double mixing. A problem of mirror frequencies. Up and downconverting. Auxiliary circuits of radio receivers (AGC, AFC).
14. Fundamental principles of nonlinear analysis and optimization of radiofrequency circuits. Steadystate algorithms. Methods of an efficient analysis of largescale circuits.
 Syllabus of tutorials:

The exercises consist of laboratory measurements selected in the way to cover completely topics of the lectures for better understanding of radio circuits and devices. There will be arranged a measurement of radio filters, measurements of amplifiers of various classes, including a power amplifier of a radio transmitter, measurements of oscillators and mixers including a computation of IP1 and IP3, and measurements of various parameters of radio receivers.
1. Basic parameters and characteristics of receivers
2. Filters, measurement of transfer characteristics, LC, SAW, crystal filter
3. A, B, and Cclass amplifiers
4. Mixer, mixing products, IP1, IP3
5. Digital radio DRM
6. Digital TV DVBT
7. PLL
8. Measurement on transmitter
9. Cascade synthesis
10. Highfrequency properties of passive elements
11. Receivers, mirror frequency, double mixing
12. Oscillators
13. Amplifier, differential amplifier, selective amplifier
14. Mixers, conversion parameters
 Study Objective:

Presenting knowledge for practical radio circuits design.
 Study materials:

Dobeš, J., Žalud, V.: Moderní radiotechnika. BEN, 2006, 764 str. ISBN 8073001322.
Vendelin, G.D., Pavio, A.M., Rohde, U.L.: Microwave Circuit Design Using Linear and Nonlinear Techniques.
WileyInterscience, 2005, 1058 str. ISBN 0471414794.
Misra, D.K: RadioFrequency and Microwave Communication Circuits Analysis and Design . John Wiley & Sons, Inc.,
2001, 577 str. ISBN 0471412538.
Caverly, R.: CMOS RFIC Design Principles. Artech House, 2007, 435 s. ISBN 9781596931329.
Sodagar, A.M.: Analysis of Bipolar and CMOS Amlifiers. CRC Press, 2007, 411 str. ISBN 1420046446.
Nelson, C. HighFrequency and Microwave Circuit Design. CRC Press, 2008, 162 str. ISBN 9780849375620.
Odyniec, M: RF and Microwave Oscillator Design. Artech House, 2002, 398 str. 1580533205.
Dobrowolski, J.A., Ostrowski, W.: ComputerAided Analysis, Modeling, and Design of Microwave Networks The
Wave Approach . Artech House, 1996, 305 str. ISBN 0890066698.
Wong, T.T.Y.: Fundamentals of Distributed Amplification. Artech House, 1993, 325 str. ISBN 0890066459.
Sun, Y.: Wireless Communications Circuits and Systems. IEE, 2004, 285 str. ISBN 0852964439.
Baker, R.J., Li, H.V., Boyce, D.E.: CMOS Design, Layout, and Simulation. IEEE & WileyInterscience, 1998, 902
str. ISBN 0780334167.
Wamback, P., Sansen, W.: Distortion Analysis of Analog Integrated Circuits. Kluwer Academic Publishers, 1998, 501
str. ISBN 0792381666.
Rudolph, M.: Introduction to Modeling HBTs. Artech House, 2006, 322 str. ISBN 158053144x.
 Note:
 Further information:
 https://moodle.fel.cvut.cz/courses/B2B37ROZ
 No timetable has been prepared for this course
 The course is a part of the following study plans:

 Electronics and Communications 2016 (compulsory course in the program)
 Electronics and Communications 2018 (compulsory elective course)