Simulation single resonator low pass filter in CST

In this tutorial, I demonstrate the step-by-step modeling, setup, and simulation of a microstrip low-pass filter (LPF) using CST Studio Suite. This design features a single rectangular open-ended resonator coupled to a 50-ohm microstrip line. We will analyze the resulting S-parameters(S11 reflection and S21 transmission) up to 6 GHz. 📌 Topics covered: Modeling microstrip line & resonator geometry Waveguide port excitation Transient / Frequency domain solver settings Analyzing return loss (S11) and insertion loss (S21) #CSTStudioSuite #MicrostripFilter #LowPassFilter #RFDesign #MicrowaveEngineering