Karol Abratkiewicz was born in Brodnica, Poland, in 1993. He received B.Sc. (Hons.) and M.Sc. degrees in electronics and telecommunications from the Gdańsk University of Technology (GUT), Gdańsk, Poland, in 2016 and 2017, respectively. He is working toward a Ph.D. with the Radar Research Group, Warsaw University of Technology, Warsaw, Poland. His specialization was microwave engineering and antenna design, whereas his M.Sc. thesis covered signal processing techniques. In 2014, he had an internship with Przemysłowy Instytut Telekomunikacji S.A., Gdańsk, Poland. From 2015 to 2018, he was with GUT and participated in international R&D projects, providing wireless and embedded infrastructure for the Hi-Tech industry. In the summer of 2018, he had an internship with Fraunhofer FHR, Wachtberg, Germany, in the Department of Passive Radar and Antijamming Techniques. During the 2022 IEEE Radar Conference, he received the IEEE Michael C. Wicks Radar Student Travel Grant. He also received the Sensors 2022 Travel Award in Remote Sensors and Radar Sensors. His main research interests include radar signal processing (especially time–frequency analysis), signal parameter estimation, and linear and nonlinear pulse reconstruction.