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2021W, VU, 3.0h, 4.0EC

## Properties

• Semester hours: 3.0
• Credits: 4.0
• Type: VU Lecture and Exercise
• Format: Distance Learning

## Learning outcomes

After successful completion of the course, students are able to visualize electromagnetic waves on transmission lines and in free space and are able to select a suitable transmission line for different kinds of radio frequency signals. Finally, the students are familiar with the problems and natural limits of wave propagation and antennas.

## Subject of course

General characterization of electromagnetic waves, including repetition of basics: wave vector, field pattern, wave impedance, polarization, boundary conditions, solutions of wave equations in Cartesian coordinate systems, plane waves. Specific examples of some important lines and the waves they propagate: parallel plate, surface waves, dielectric waveguides, microstrip lines. Metallic waveguides (including resonators). Propagation of electromagnetic waves in free-space (radio links, radar) and at interfaces (reflection, scattering, refraction, diffraction). Mobile communication propagation (fast/slow and selective/flat fading, time dispersion and intersymbol interference, description of multi-path propagation with deterministic and stochastic methods). Electrical charcterization of antennas by antenna pattern, gain, polarization, impedance, bandwidth. Far field and near field, basics of reciprocity.

Please note, this lecture is given in German only!

## Teaching methods

The theory of electromagnetic waves and antennas is supported by exemplary problems, by hardware items ("things of the week") to touch and feel, and an introduction into the software package EZNEC which allows the numerical modelling of simple antennas. An optional experiment can be carried out at home to verify the law of refraction.

Written and oral

## Additional information

The first lecture will be held on Tuesday Oct. 5, 2021 at 10:15-11:30am with Zoom due to the current Covid-19 measures (instead of the usual real-world lecture in lecture hall EI 3 (Sahulka).

Please participate in the Zoom via the Link

https://tuwien.zoom.us/j/96631988106

Meeting ID: 966 3198 8106

The lectures are held on Tuesdays and Thursdays from 10:15am to 11:30am. Please be so kind to deactivate your WebCam and microphone in order to save internet bandwidth. If you have a question, please announce it in the chat.

The lectures from 2020W were recorded and are available on Lecture Tube as video on demand.

## Course dates

DayTimeDateLocationDescription
Tue10:00 - 12:0005.10.2021 - 25.01.2022 (LIVE)Vorlesung
Thu10:00 - 12:0007.10.2021 - 27.01.2022 (LIVE)Vorlesung
Wave propagation - Single appointments
DayDateTimeLocationDescription
Tue05.10.202110:00 - 12:00 Vorlesung
Thu07.10.202110:00 - 12:00 Vorlesung
Tue12.10.202110:00 - 12:00 Vorlesung
Thu14.10.202110:00 - 12:00 Vorlesung
Tue19.10.202110:00 - 12:00 Vorlesung
Thu21.10.202110:00 - 12:00 Vorlesung
Thu28.10.202110:00 - 12:00 Vorlesung
Thu04.11.202110:00 - 12:00 Vorlesung
Tue09.11.202110:00 - 12:00 Vorlesung
Thu11.11.202110:00 - 12:00 Vorlesung
Tue16.11.202110:00 - 12:00 Vorlesung
Thu18.11.202110:00 - 12:00 Vorlesung
Tue23.11.202110:00 - 12:00 Vorlesung
Thu25.11.202110:00 - 12:00 Vorlesung
Tue30.11.202110:00 - 12:00 Vorlesung
Thu02.12.202110:00 - 12:00 Vorlesung
Tue07.12.202110:00 - 12:00 Vorlesung
Thu09.12.202110:00 - 12:00 Vorlesung
Tue14.12.202110:00 - 12:00 Vorlesung
Thu16.12.202110:00 - 12:00 Vorlesung

## Examination modalities

The exam has a writen and oral part. Optionally, two additional tasks can be accomplished which give add-on points.

## Exams

DayTimeDateRoomMode of examinationApplication timeApplication modeExam
Fri09:00 - 13:0010.12.2021EI 9 Hlawka HS - ETIT written15.11.2021 00:00 - 03.12.2021 00:00TISSschriftl. Prüfung
Mon09:00 - 17:0020.12.2021 https://tuwien.zoom.us/j/96631988106written&oral14.12.2021 08:00 - 18.12.2021 17:00TISSmündliche Prüfung
Tue09:00 - 17:0021.12.2021 https://tuwien.zoom.us/j/96631988106written&oral14.12.2021 08:00 - 19.12.2021 12:00TISSmündliche Prüfung
Fri11:00 - 15:0028.01.2022EI 9 Hlawka HS - ETIT written03.01.2022 00:00 - 17.01.2022 00:00TISSschriftl. Prüfung

Not necessary

## Literature

Lecture notes for this course are available at the "Graphischen Zentrum an der TU Wien", Wiedner Hauptstraße 8 - 10, 1040 Wien (EG, roter Bereich).
Further Reading: (also see https://www.nt.tuwien.ac.at/teaching/winter-term/wellenausbreitung/)

• Zinke-Brunsvig, Hochfrequenztechnik, Springer Verlag
• Heilmann, Antennen, BI Taschenbücher
• Stutzman & Thiele, Antenna Theory and Design, Wiley
• J.D.Parsons, The Mobile Radio Channel, Wiley
• R. Vaughan, J. Bach-Andersen, Channels, Propagation and Antennas for Mobile Communications, IEE Electromagnetic Waves Series 50,2003

German