Discussion of the exercises from previous days
Presentations
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Summary prerequired knowledge: noise in electronic systems
Random signal modeling
Presentation
The presentation “Random signal modeling” briefly summarizes random signal models.
Study
Chapter 16.3
Characterization of amplifiers
Amplifiers: modeling of port isolation errors
At an early stage of the design process, we use relatively two-port models that describe the functional behavior of the amplifier. However, it is important to know the conditions under which electrical networks can be represented by such two-ports. If such conditions are not met, more eleborate description models are required and deviations from the ideal behavior should be well defined.
Presentation
The presentation “Amplifiers: port isolation errors” shows that preformance measures for port isolation, that are used in practice, are ofen incomplete.
Video
Amplifiers modeling of port isolation errors (3:37)
Study
Chapter 2.4.1, 2.4.2
Noise in electronic circuits
As all real-world systems, amplifiers add noise to the signal.
Presentation
The presentation “Noise in electronic circuits” briefly introduces noise mechanisms in electronic components and presents models and parameters for characterization of the noise behavior as well as noise analysis techniques.
Videos
Study
Chapter 19
SLiCAP noise analysis
Presentation
The presentation “SLiCAP noise analysis” introduces the essentials of symbolic and numeric noise analysis in with SLiCAP.
Amplifiers: modeling of power losses and energy storage
As all physical systems, amplifiers suffer from power losses and energy storage.
Presentation
The presentation “Amplifiers: power losses and energy storage” introduces high-level modeling techniques for such effects. It also briefly introduces a classification of amplifiers, based on the operation of the stage that drives the load.
Study
Chapter 2.4.4, 2.4.5
Amplifiers: voltage and current drive capability
The static and dynamic voltage and current drive capabilities of amplifiers are limited.
Presentation
The presentation “Amplifiers: voltage and current drive capability” gives description methods for these effects.
Video
Amplifiers: voltage and current drive capability (5:37)
Study
Chapter 2.4.7, 2.4.8, 17.5, 17.7
Amplifiers: modeling of small-signal dynamic behavior
As all physical systems, amplifiers impose limits to the rate of change of a physical signal. For small signals with a small rate of change, the amplifier can be considered as a linear time-invariant dynamic system and modeled accordingly.
Presentation
This presentation “Amplifiers: modeling of small-signal dynamic behavior” briefly summarizes analysis and characterization methods for such systems.
Videos
Study
Chapter 2.4.6, 17.4
Amplifiers: modeling of weakly nonlinear behavior
At signal levels below clipping, amplifiers will not behave perfectly linear.
Presentation
The presentation “Amplifiers: modeling of weakly nonlinear behavior” gives description methods for weakly nonlinear behavior.
Video
Amplifiers modeling of weakly nonlinear behavior (13:03)
Study
Chapter 17.5, 17.7
Guidance with homework
The theory presented in day 2 will be applied in the design of the active antenna. Please use SLiCAP as documentation tool.
