The Antenna and sub-THz Research Group, headed by Prof. Yevhen Yashchyshyn, is focused on the study of theoretical and practical aspects related to theory and technology of antennasin the frequency range up to sub-THz. Special attention has been recently put on software-defined radio systems and smart and reconfigurable antennas, electronically controlled and photonic antennas, time-modulated antennas and MIMO system etc. The group also specializes in investigating the properties of materials (incl. semiconductors, ferroelectrics, graphene, composites etc.) in range up to 500 GHz. Measuring abilities include a sub-THz 3D scanner for imaging investigation. Recent achievements:

• A new method for dielectric characterization in sub-THz frequency range
• Methodology to reduce the number of switches in frequency reconfigurable antennas with massive switches.
• Reconfigurable mm-wave antenna with integrated S-PIN diodes
• X-band antenna array for low-cost beam scanning
• Time modulated antenna array including antennas for MIMO system
• New generation of photonic antennas for Radio over Fiber networks
• Electronically controlled antenna on ferroelectric ceramic-polymer composites

Field Methods in Microwave and Subterahertz Technology Research Group, headed by Prof. Bartłomiej Salski, specializes in a scientific and applied research in microwave and millimeter-wave measurements of dielectric, magnetic and conductive materials with the aid of Fabry-Perot, dielectric and cavity resonators. Recent achievements:

• Development of a market-ready Fabry-Perot automated resonant system for very precise measurements of low-loss dielectrics in the 20-110 GHz range
• Development of an improved technique of the measurement of the ferromagnetic linewidth of magnetic materials