Mikrowellenmesstechnik

  • Type: Vorlesung & Übung
  • Chair: IHE
  • Place:

    Vorlesung: Nachrichtentechnik-Hörsaal (NTI)

    Übung: Nachrichtentechnik-Hörsaal (NTI)
  • Time:

    Vorlesung: Montag, 11:30-13:00, Start 28.04.2025
    Übung: Freitag, 8:00-9:30 (Termine: siehe Ilias), Start 02.05.2025
  • Start: 28.04.2025
  • Lecturer:

    Dr.-Ing. Mario Pauli

    Übungsleiter: Max Vöhringer

  • SWS: 2+1 (Vorlesung + Übung)
  • ECTS: 4
  • Lv-no: Vorlesung: 2308420; Übung: 2308422
  • Exam:

    mündlich (ca. 20 min.), Termin individuell nach Vereinbarung
  • Information:

    Lecture will be held in english starting from SS 2025.
Links
Diese Vorlesung enthält alle grundlegenden Bereiche der heutigen Hochfrequenzmesstechniken. Besondere Beachtung findet hierbei die Beschreibung derjenigen Messsysteme und Methoden, die in modernen Anwendungen zum Einsatz kommen. Eine Ein-Tages-Exkursion zu Firmen, die Hochfrequenzbaugruppen herstellen, wird angeboten. Die Vorlesung richtet sich an Studierende der Physik und der Elektrotechnik und Informationstechnik.

ILIAS

Online lecture support is provided via the ILIAS learning platform, which can be used after registration with a KIT account. Via ILIAS, participants are provided with materials, can also receive e-mail notifications (e.g. in the event of changes to dates, question times, examination dates, etc.), discuss content-related and organizational questions in a web forum and much more.

The link to the offer is here.

 

Experimental lecture

One morning at the IHM (North Campus)
 

  •     Experiments (demonstration)
  •     Laboratory tour
  •     Gyrotron test stand visit
     

Date to be determined

 

Prerequisites

Basics of high frequency technology

 

Scripts/Books

Thumm, M., Wiesbeck, W., Kern, S., Hochfrequenzmeßtechnik-Verfahren und Meßsysteme, BG. Teubner Verlag, Stuttgart, 1997.

 

Topics covered  

Introduction

  • Fundamentals of microwave measurement technology
  • Frequency and power ranges
  • Special features in the microwave range
  • Automation
     


Measurement generators

  • Classification
  • Signal generator, sweep generator, synthesiser
  • Assemblies of measurement generators
  • Oscillators, frequency multipliers
  • Typical block diagrams and circuits
  • Output spectra of the generators


Power measurement

  • Basic sources of error
  • Measuring transducer
  • Calorimeter, bolometer
  • Pyroelectric detector, Golay cell
  • Schottky diode
  • Power measurement on modulated and pulsed microwave signals
     

Frequency measurement

  • Mechanical and digital measurement
  • Frequency counter
  • Direct measurement, hetherodyne method
  • Block diagrams

 

High frequency spectrum analyzer

  • Basic principles
  • Block diagram and circuit
  • Resolution
  • Applications


Measurements in the modulation range

  • zero dead time counter
  • Measurement of frequency and phase dynamics
  • Jitter

Measurement of phase noise

  • The basics
  • Causes of phase noise
  • Direct measurement method
  • Phase discriminator method
  • Frequency discriminator method
  • Allan variance


Linear network analysis

  • Structure of network analyzers
  • Scalar and vector network analysis
  • Time domain reflectometry
  • Error model
  • Calibration
  • Applications