You can follow the below guide on setting up baseband operations in Simulink for your RF chain:
- Idealized Baseband: Simplest model, assumes perfect impedance match. Great for fast, discrete-time simulations of RF networks without mismatch effects. You can refer to the below documentation link to know more about the same: https://www.mathworks.com/help/simrf/gs/using-simrf-software-for-the-first-time.html
- Equivalent Baseband: Supports discrete-time simulation of cascaded single-carrier RF chains with mismatches, importing network parameters (e.g. S‑parameters). Refer to the below documentation for better understanding: https://www.mathworks.com/help/simrf/equivalent-baseband-simulation.html
- Circuit Envelope: Best for multicarrier/high-fidelity cases with arbitrary topologies. It is slightly more complex to model.
I hope this helps!
