Course Catalog 2010-2011
TLT-8107 Basic Communication Circuits - 2, 7 cr
Tapio Lehtonen, Nikolay Tchamov
|Study type||P1||P2||P3||P4||Summer||Implementations||Lecture times and places|
2. Attending at least 80% of the Lectures.
3. Attending all Exercises.
4. Developing all Homeworks.
5. Completing all Laboratory Exercises.
Completion parts must belong to the same implementation
Principles and baselines related to teaching and learning
The course focuses on basic amplifier building blocks and circuits for wireless communications. Upon completing the course the student understands and can analyze the most important amplifier circuits. The student knows: - The basic concepts of semiconductor physics needed to understand transistor (BJT and MOS) operation; - The basic transistor amplifier stages (common emitter/source, common collector/drain and common base/gate) and their operation as well as how to do small-signal analysis of these amplifiers; - Principles of feedback and how it affects amplifier circuits as well as operation of most important oscillator circuits based on feedback; - Operation of different classes of power amplifiers, i.e. A, B, C and other higher classes; - The basic operation of differential and cascode amplifiers and how to improve their operation - Basics of filter transfer functions and design; - How to use OrCAD PSpice for simulating basic amplifiers and oscillator circuits - How to perform basic oscillator measurements using oscilloscopes and spectrum analyzers and how to automate the measurement process using HP-VEE software.
|Content||Core content||Complementary knowledge||Specialist knowledge|
|1.||Operational Block diagram of modern communication transceiver. Signals in time and frequency domain. Measuring instruments. Feedback in amplifiers.|
|2.||Semiconductor Devices at High/RF, Depletion and diffusion capacitances, BJT, HBT, FET and MOS transistors and their Small-signal equivalent circuits. CE/CS, CC/CD and CB/CG basic amplifier stages and their comparison. BJT and MOS Wilson and Widlar current mirrors. Combined current sources. DC voltage references.|
|3.||RF-gain enhancement by inductor or by LC tank. CE and CS tuned amplifiers and their design. CB and CD tuned amplifiers and design. Stability problems in tuned amplifiers. Neutralization.|
|4.||Oscillator principles, Barkhausen criterion. Series resonance LC VCO: description, oscillation frequency, tuning. Colpitts oscillator: description, analysis. Hartley oscillator. Parameters of the oscillators. Basic principles of LC, RC, quartz crystal, relaxation oscillators. Series Resonance LC-VCO Theory: Active load, Common-mode feedback and DC stabilization. Cascodes: Darlington and composite transistors, CE-CB and CS-CG cascode stages. Cascode stages with active loads. Folded cascodes. Differential BJT and MOS amplifiers and behaviour at RF range; CMRR and devices mismatch effects in differential amplifiers. Modifications of differential amplifiers.|
|5.||RF-Power devices and RF-amplifiers in Class-A, Class-B and Class-C. Other classes with higher efficiency: D and E. Basic filter types, Butterworth and Chebyshev transfer functions. First and second order filter stages: Sallen-Key and Deliyannis-Friend filters.|
|6.||The exercise task is simulating and assembling a 4…10MHz LC-LCO on a printed circuit board. Simulations are done with OrCAD Pspice and measurement of the ready circuit using Hewlett-Packard RF-measurement equipment (HP54602A oscilloscope and ESA-L1500B spectrum analyzer) utilizing an automated interface and controlled HP-VEE software.|
Evaluation criteria for the course
1) Exercises -> 50% of the grade. 2) Exam -> 50% of the grade.
Numerical evaluation scale (1-5) will be used on the course
|Type||Name||Author||ISBN||URL||Edition, availability, ...||Examination material||Language|
|Book||Analysis and design of analog integrated circuits||P. R. Gray, P. J. Hurst, S. H. Lewis, R. G. Mayer||0-471-32168-0||J.Wiley&Sons, 2001, ISBN 0-471-32168-0||English|
|Book||Electronics, 2nd edition||A. R. Hambley||0-13-691982-0||Prentice Hall, 2000, ISBN 0-13-691982-0||English|
|Book||Solid State Radio Engineering||H. L. Krauss, C. W. Bostian, F. H. Raab||0-471-03018-||J. Wiley&Sons, 1980, ISBN 0-471-03018-X||English|
|Summary of lectures||English|
Prerequisite relations (Requires logging in to POP)
Correspondence of content
More precise information per implementation
|Implementation||Description||Methods of instruction||Implementation|