RF analysis
Inspect S11, S21, S12, S22, return loss, insertion loss, stability, gain, and marker-driven RF measurements in Tersa EDA.
Compare S11 and S21 at the same frequencies to inspect reflection and transmission. Use markers to check losses against the circuit requirements.
After reviewing the S-parameters, inspect the impedance at the target frequency on a Smith chart. Compare the trajectory before and after changing component values.
Open an S1P or S2P file to inspect magnitude, phase and reflection on a Smith chart. File processing stays in your browser.
Create circuit schematics, run SPICE-compatible analysis, inspect S-parameters and Smith charts, and tune component values across tablet and desktop.
Build and simulate analog and RF circuits on iPhone, iPad and Android with Tersa. Run DC, AC and transient analyses, inspect plots and tune component values.
Online Smith chart: plot impedance, calculate VSWR and return loss, and find ideal L/C matching networks at one frequency. Free, no account.
Explore Tersa EDA tools for schematic editing, SPICE-compatible simulation, S-parameter analysis, Smith charts, RF measurements, and component tuning.
Move between matching theory, a practical Tersa workflow, S-parameter analysis, and Smith chart inspection.
RF engineering guide
Learn a repeatable RF impedance matching workflow using complex impedance, S11, return loss, Smith charts, reactive networks, and bandwidth checks.
Application workflow
Follow a practical Tersa EDA workflow: prepare RF ports, run an S-parameter sweep, inspect S11 on a Smith chart, tune L and C, and verify bandwidth.
RF engineering library
Practical material about impedance matching, S-parameters, Smith charts, frequency response, and repeatable RF tuning workflows.
The workflow is positioned around S11, S21, S12, and S22.
It is RF-focused, but useful for analog designers who need quick frequency-response and matching checks.
