Effective permittivity measurement with the use of coupled-line section sensor. - Ilona Piekarz; Jakub Sorocki; Krzysztof Wincza; Slawomir Gruszczynski (RWS, 2016)

Low-cost impedance tuner utilizing quadrature coupled-line coupler for load and source pull transistor measurement applications. - Jakub Sorocki; Ilona Piekarz; Slawomir Gruszczynski; Krzysztof Wincza (RWS, 2016)

Rat-race directional couplers operating in differential mode. - Ilona Piekarz; Jakub Sorocki; Krzysztof Wincza; Slawomir Gruszczynski (RWS, 2017)

Six-port reflectometer with tunable parameters ensuring measurement accuracy enhancement. - Kamil Staszek; Jakub Sorocki; Krzysztof Wincza; Slawomir Gruszczynski (WiSNet, 2017)

Low-Cost Microwave Vector System for Liquid Properties Monitoring. - Kamil Staszek; Ilona Piekarz; Jakub Sorocki; Sebastian Koryciak; Krzysztof Wincza; Slawomir Gruszczynski (IEEE Trans. Ind. Electron., 2018)

Low-Cost Microwave Components' Fabrication in Hybrid Technology of Laminates and Additive Manufacturing on an Example of Miniaturized Suspended Directional Coupler. - Jakub Sorocki; Ilona Piekarz (IEEE Access, 2020)

Four-Node Antenna Feeding Network for Interfacing With Differential Front-End Electronics. - Ilona Piekarz; Jakub Sorocki; Robert Smolarz; Slawomir Gruszczynski; Krzysztof Wincza (IEEE Access, 2021)

Development of a C-Band Multi-Stage Solid State Power Amplifier for 200 W Continuous Wave Output. - Andrzej Lewandowski; Jakub Sorocki (MIXDES, 2023)

A Broadband Inline Transition From On-PCB Microstrip to Hybrid Stack-Up Integrated Additively Fabricated Air-Filled Waveguide. - Jakub Sorocki; Ilona Piekarz; Nicolo Delmonte; Lorenzo Silvestri; Maurizio Bozzi (IEEE Access, 2024)

Low-Cost and Highly Sensitive Reflective-Mode Phase-Variation Sensor for Bacteria Detection. - Ilona Piekarz; Jakub Sorocki; Witold Skowronski; Sabina Górska; Slawomir Gruszczynski; Krzysztof Wincza; Pau Casacuberta; Paris Vélez; Ferran Martín (IEEE Access, 2025)