Hochfrequenztechnik und Elektromagnetische Verträglichkeit

High-Frequency Engineering and EMC

A dream of mankind came true when Heinrich Hertz's experiments at the Technical University in Karlsruhe opened up the possibility of sending messages wirelessly over long distances.

The science that has intensively dealt with this task to this day is high-frequency technology. It is always spoken of when an electrical voltage, current or electromagnetic field changes within approx. 10-7 to 10-12 seconds. Radio and television technology are the classic examples of high-frequency technology. In the meantime, the area has of course become much more extensive.

Current applications are radio relay, satellite television, mobile phone, navigation, radar, earth observation with satellites, telemetry of space probes and satellites, measuring sensors, microwave ovens etc. The trend is towards even higher frequencies.


  • 2 Hz - 50 GHz Signal Analyzer Keysight N9030B
  • 9 kHz – 21,2 GHz Signal Analyzer Anritsu MS2665C
  • 60 - 90 GHz RF-Mixer/ Millimeter-Wave Signal Analyzer Frequency Extension Module Keysight N9029AV12
  • 90 - 140 GHz RF-Mixer/ Millimeter-Wave Signal Analyzer Frequency Extension Module Keysight N9029AV08
  • 10 MHz – 20 GHz Vector Netzwok Analyzer Agilent PNA-L
  • 9 kHz – 6 GHz Signal Generator Rohde & Schwarz SMA 100A
  • 8 kHz -20 GHz Signal Generator Rohde & Schwarz SMA 100BS
  • 10 MHz – 20 GHz Signal Generator Anritsu 68247B
  • 8 GHz 4 Kanal Mixed Signal Oszilloskop Keysight MSOS804A Infiniium S Serie
  • 8 GHz 4 Kanal Oszilloskop Keysight DSOS804A Infiniium S Serie
  • Anechoic chamber with 3 m measuring range for radiation and interference power measurements up to 1 GHz
  • EMI Test Receiver Rohde & Schwarz ESHS10 9kHz – 30 MHz
  • EMI Test Receiver Rohde & Schwarz ESVS10 20 MHz – 1000 MHz
  • RFT network replica NNB11 for line-based measurements during development

Practical courses and exercises

The laboratory for high-frequency technology and electromagnetic compatibility (EMC) offers two laboratories on different areas of high-frequency technology.

Laboratory High Frequency Technology I

  • Experiment 1
    Behavior of components at higher frequencies:
    Simulation and measurement of parasitic properties of components
  • Experiment 2
    Transmission line:
    Behavior of TEM waves on RF lines, simulation and measurement of complex voltages along a line at different line terminations.
  • Experiment 3
    Simulation of microstrip lines, S-parameters, matching transformation with a stub line.


Laboratory High Frequency Technology II

  • Experiment 1
    Network analysis of passive microwave components
  • Experiment 2
    Circuit simulation with AWR Microwave Office
  • Experiment 3
    Rectangular waveguide in microwave technology
  • Experiment 4
    Determining noise parameters of microwave components
  • Experiment 5
    Non-linearity of amplifiers and behavior of mixers

Current Projects

For further projects visit our website: https://iuas.hs-offenburg.de/