Course Syllabus 2014/2015
 
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Module : EA215
Title :
RF techniques
Number of hours :
Lecture : 25.50 h
Tutorial classes : 20.00 h
ECTS credits :
2.00
Evaluation :
Teacher(s) :
RODES Francis - Responsible
Shared by UV(s) :
Level :
second year module
Abstract :
Electronic circuits and systems are working at frequencies that rise at an accelerated pace. For instance, one can observe the sustained rise of the clock frequencies of computers and digital circuits. Consequently it becomes obvious nowadays that an electronic engineer should acquire some basic expertise in High Frequency techniques. The main objective of this course is to fulfil this need by presenting the various basic knowledge and techniques that are useful for designing High frequency circuits and systems (mainly, radio communications systems). From a pedagogic point of view, this course brings some complementary information to the courses: Mixed Electronic and RF circuits (UVE4Ba). Moreover, it constitutes a theoretical basis for the electronic design projects of S3 and S4 and a recommended prerequisite for attending the various courses that are proposed in S5 in the field of analogue electronic. (Particularly the projects of RF circuits design).
Plan :
    • RF units.
    • Quality factor Q, general definition and RF applications.
    • Transmission lines
    • Smith chart, extended Smith chart
    • Power matching strategies.
    • Noise, noise matching.
    • Impedance matching with lumped elements:
    • Impedance matching with distributed elements
    • Matching with analytical methods
    • Matching with graphical methods (Smith chart)
    • Matching with the help of CAE/CAD software tools (Smith Tool / Ansoft Designer)
    • From the concept of power matching to the principle of S parameter of a dipole
    • Extension to the Sij parameters of a quadripole
    • Theoretical network analysis with Sij parameters
    • Application of the Sij parameters to the design of oscillators; relation with the negative resistance method.
    • Graphical network analysis with the flow graph and Sij parameters.
    • Application of the Sij parameters to the design of linear amplifiers.
    • Extension conditions of the Sij parameters to non linear power devices.
    • Sij parameters measurement, the calibration issue.
    • Practical work/Project : Design, manufacturing and test of the matching networks of a linear amplifier with the help of Ansoft Designer’s Smith Tool, Vector Network Analyzers and Spectrum Analyzers.
Prerequisite :
UV1 (1° A) : Analog Electronic, UV5 (2° A) : Module digital communications, UV11(2° A) : Integrated Analog Electronic , Module circuits and systems of analog communications.
Document(s) :
Power transmission, impedance matching. Transmission lines. Smith chart, theory and applications. Introduction to S parameters. Tutorials of software tools: ANSOFT DESIGNER, SMITH TOOL. CD ROM's of software tool: ANSOFT DESIGNER, (Student Version)
Keyword(s) :
RF, power matching, noise matching, impedance matching, transmission lines, Smith chart, S parameters, oscillator, amplifier, VNA calibration