In this course, you will learn to understand the operation of basic microwave devices and antennas.

During the course, you will derive the electromagnetic response of transmission lines, waveguides and antennas. You will learn how to use commercial software of simulation, such as CST Microwave Studio. This software of simulation is extensively used in industry.

Your will learn how to perform basic measurements during our hands-on labs. You will visit the facilities of Ericsson and SAAB in Stockholm, understanding the everyday's work of a microwave engineer.

Finally, you will construct one matching network in microstrip technology. In the photo, you can see one example of a prototype built by former students in the course.

### Choose semester and course offering

Choose semester and course offering to see information from the correct course syllabus and course offering.

## Content and learning outcomes

### Course contents

• plane waves: reflection and transmission at oblique incidence; critical angle; Brewsterangle
• transmission line theory: distributed parameters, characteristic impedance; matching; Smith chart
• rectangular and circular waveguides; dielectric waveguides; cavity resonators
• fields from general source distributions
• basics of antenna arrays and wire antennas; radiation pattern; radiation resistance; antenna demonstration

### Intended learning outcomes

General goals

After the course the student shall from a description of a situation that leads to an electromagnetic field problems be able to

• use their conceptual understanding of the electromagnetic laws in order to qualitatively describe the behavior of the solution to the problem
• use their ability to manage the electromagnetic laws to, in simple situations, set up a computational model and perform the necessary calculations: select appropriate methods; make appropriate approximations; plausibility assess the results

Concrete goals

• analyze the polarization state of an electromagnetic wave
• analyze refraction and interference of electromagnetic waves by reflection from interfaces
• explain the basic concepts of transmission lines and calculate currents and voltages along a transmission line
• use the Smith chart for solving matching problems
• analyze mode decomposition in rectangular and circular hollow waveguides, and in planar dielectric waveguides
• determine resonance frequencies and losses in cavity resonators
• distinguish between near-field and far-field properties
• calculate the radiation field from straight wire antennas with given current distributions
• calculate the radiation field from antenna arrays without coupling between the elements
• describe the concepts of directivity, antenna gain and beamwidth

### Course Disposition

Lectures, tutorial exercises and labs.

## Literature and preparations

### Specific prerequisites

Electromagnetic theory, corresponding to EI220 or EI1240.

### Recommended prerequisites

Electromagnetic theory, corresponding to EI1220 or EI1240.

### Equipment

Matlab and lab equipment.

### Literature

No information inserted

## Examination and completion

If the course is discontinued, students may request to be examined during the following two academic years.

A, B, C, D, E, FX, F

### Examination

• TEN1 - Written Exam, 6,0 hp, betygsskala: A, B, C, D, E, FX, F

Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.

The examiner may apply another examination format when re-examining individual students.

### Other requirements for final grade

Passed in all examination moments.

### Opportunity to complete the requirements via supplementary examination

No information inserted

### Opportunity to raise an approved grade via renewed examination

No information inserted

### Ethical approach

• All members of a group are responsible for the group's work.
• In any assessment, every student shall honestly disclose any help received and sources used.
• In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.

## Further information

### Course web

Further information about the course can be found on the Course web at the link below. Information on the Course web will later be moved to this site.

Course web EI1222

### Offered by

EECS/Electrical Engineering

Technology

First cycle