354.000 RF measurement instruments A
This course is in all assigned curricula part of the STEOP.
This course is in at least 1 assigned curriculum part of the STEOP.

2024S, KO, 1.5h, 1.5EC, to be held in blocked form


  • Semester hours: 1.5
  • Credits: 1.5
  • Type: KO Conversatorium
  • Format: Presence

Learning outcomes

After successful completion of the course, students are able to perform successful basic measurements in the fields of network analysis, spectrum analysation, and RF power measurement. When describing RF phenomena, they are able to switch from time domain interpretation to frequency domain, and vice versa.


Students will remember the most important differences of RF measurement in contrast to measurements in the low frequency range. They will remember the relevant measures as there are voltage, current, power, impedance, characteristic wave impedance, oscillator stability, and spectral power density.


Based on the detection of RF voltage (amplitude and phase) and RF power (detector diodes, thermal/bolometric devices), students stepwise understand the path from analog signal processing starting with the cable connector at the device under test (DUT) and ending at the digital processing input stage in RF measurement instruments.


Students apply the above understanding by undertaking first own measurements with scope, spectrum analyzer, network analyzer, RF signal generators, in single DUT - single measurement instrument experiments. The three topics are reflection coefficient, signal spectra, and noise.


In the next step students analyze measuring results achieved by instruments typically associated with time domain (scope) or frequency domain (spectrum analyzer) measurements. They will be able to switch between the two interpretations of one and the same measurement signal.


Complex real world measurement scenarios cover more than one device under test as well as more than one RF instrument. Considering the geometrical ratios of cable lengths and involved wavelengths, as well as the input impedances of involved instrumentation, students detect and evaluate potential hidden mistakes and faults.


Finally, students create their own assessment framework regarding validity, sensitivity, accuracy, and correctness of the measurements they have undertaken in the lab. 


see Bloom's taxonomy for classification of educational learning objectives (6 levels: remember, understand, apply, analyze, evaluate, create), Benjamin S. Bloom, M. D. Engelhart, E. J. Furst, W. H. Hill, David R. Krathwohl: Taxonomy of educational objectives: The classification of educational goals. Handbook I: Cognitive domain. David McKay Company, New York 1956

Subject of course

Basic functional principles and basic measurements with spectrum analysers, network analysers, digital storage oscilloscopes, rf-oscillators, and frequency counters. Discussion of the worst mistakes in rf measurement setups. Three main items: spectrum measurements, measurements of the reflection coefficient, and noise reduction by bandwidth limitation. Discussion of the relevant phenomena in the time domain, and in the frequency domain, respectively.

Teaching methods

Basic experimental measurements with RF measurement equipment focusing the main items of the course. All experiments are easy to understand on the knowledge level of bachelor courses Telecommunications and Wave Propagation, and after discussion and preparation in the lab group.


Mode of examination


Additional information

Registration via mail to:  walter.ehrlich-schupita(at)tuwien.ac.at

Blocked course in summer term, small groups, max. 9 participants in the course. Two hours introduction and three times lab session, approximately seven hours each. Room and time of the introduction lesson will be announced per hardcopy at the Institute 389 and 354, and in TISS per mail respectively. Students without TISS account, who have registered personally by mail will be informed by personal mail.



Examination modalities

current oral evaluation in each of the three lab blocks

Course registration

Registration modalities

email to:  walter.ehrlich-schupita@tuwien.ac.at


Study CodeObligationSemesterPrecon.Info
710 FW Elective Courses - Electrical Engineering Elective


Es gibt zu jedem der drei Themen Programmblätter für die einzelnen Messungen, einige Datenblätter und Ergänzungsblätter. Skriptum zur Vorlesung "Hochfrequenztechnische Systeme"

Previous knowledge

Basics out of the content of the course "Wellenausbreitung" (et&it-Bachelor), and from "Hochfrequenztechnische Systeme" (former master curriculum Telekommunikation), or "RF-Techniques" (present master curriculum Telecommunications). 


  • Attendance Required!