Electromagnetic Tuesday 27. 2. 2024

Come again after a year to see an informal performance of the Department of Electromagnetic Field. In the second week of the summer semester, we are preparing for you the 6th annual Electromagnetic Tuesday event, where you can watch interesting experiments, try to build something and learn something new. And we won’t let you die of hunger or thirst either. 

This time we have the following demonstrations and experiments for you:

Amateur Radio
How to communicate with the world in case of SHTF, but mostly for fun. You’ll meet a shortwave amateur radio station and together we’ll figure out what signals we can receive on a ‘piece of wire’.

Make Your Own Antenna III
This year’s event also includes the design and production of a small multiband antenna for modern mobile devices (laptop, tablet, phone). You can again design the antenna yourself, make it, measure its parameters and take the sample home … in your pocket.

Radar Corner IV
You will see with your own eyes how the world can be viewed with the help of an FMCW radar sensor. Similar sensors keep an eye on our safety and help in driving modern cars. You will also see examples of how car radars can be tested without the presence of physical radar targets, as well as how to ensure that the radar does not detect you.

Electromagnetic Cloaking
Optical cloaking, i.e., manipulating the optical paths around the object to make it invisible, is a classical theme in many sci-fi and fantasy movies and books. What concerns physicists and engineers about this device is its realizability and performance. In this hands-on activity, the student will attempt to design an electromagnetic cloak, competing with computer-powered topology optimization and chasing for the fundamental bound on the performance of such a device.

Directivity Antenna Array
Active antenna arrays can transmit and receive signals from various directions. Come and try to experiment with the excitation weights to control the emission and reception of an array.

Put on the Optical Antenna
The development cannot be stopped, so we continue to develop wearable optical antennas (wearables). We will light up an optical fiber (antenna), create different shapes on our clothes, capture the data with a camera and look at the whole transmission chain in detail. We will show interested participants the areas of fiber optics, communication in the visible domain, camera detection, and shape detection and signal processing methodologies.

Fun, but also Amazing Imaging with a Thermal Camera
Interested in how a thermal imaging camera sees ordinary objects in the outside world? And how can everyday activities observed through the lens of a thermal imaging camera be surprising? If your answer is yes, then come take a look.

Microwave Camera – The View Through the Material
Microwaves make possible not only precise measurement of ultra short distances or microwave imaging but also detection of optically hidden objects. That all makes possible a new waveguide sensor working in a frequency band around 80 GHz.

Photos from previous years:

EMiT 2023 – photo
EMiT 2022 – photo
EMiT 2020 – photo
EMiT 2019 – photo
EMiT 2018 – photo