Development and research of W-parameters of potentially unstable four-poles based on the mathematical model of W-parameters of field-effect transistors in the high-frequency range. IAPGOS [Internet]. 2025 Sep. 30 [cited 2026 Sep. 14];15(3):87-90. Available from: https://ph.pollub.pl/index.php/iapgos/article/view/7071