Design the lumped L-section that matches a complex load (R + jX, or pulled from a Touchstone S11 file) to a real source / system impedance at a design frequency.
See it run - a worked example, 100% in this browser tab
What it is
Design the lumped L-section that matches a complex load (R + jX, or pulled from a Touchstone S11 file) to a real source / system impedance at a design frequency. Reports both canonical solutions with inductor / capacitor values, the verified match (|Gamma_in| at the numerical floor), the network Q and the return-loss bandwidth on a Smith reflection plane. Exact closed-form L-section math; for a specific bandwidth use a 3-element or multi-section design.
Honest scope
Deterministic and citation-backed: every figure is exact arithmetic or a cited rule. Any year- or jurisdiction-indexed value is a confirmable input, never an eternal hardcode. This is a computation tool, not professional (legal, tax, medical, or financial) advice - confirm against the controlling authority for your context.
Authorities cited
D. M. Pozar, Microwave Engineering, 4th ed., Wiley 2012, section 5.1 (matching with lumped elements): the analytic L-section solution used verbatim here.
G. Gonzalez, Microwave Transistor Amplifiers, 2nd ed., Prentice Hall 1997. L-section matching and loaded Q.
Touchstone File Format Specification v1.1 - the .s1p S11 import path (Gamma -> Z load conversion).
Run it on your own data
Open it inside GDBS to save runs to Sandbox, attach results to a Worklog case, or share through a Gate client portal - all in the browser, nothing uploaded to anyone’s cloud.