Re-reading Cadence L-Matching and Stub Screens

Question I started with

I used the RFDH Smith-chart notes to revisit re-reading my stored Smith trajectory by design frequency and component order with a hand calculation and my own diagram.

Re-reading Cadence L-Matching and Stub Screens — concept flow — I redrew the relationships before returning to the equations.

Connecting the concepts

The key is re-reading my stored Smith trajectory by design frequency and component order. Before reading coordinates I record Z0, frequency, and impedance/admittance mode, then label each element or line-length move.

Smith chart
normalized impedance
reflection coefficient
matching

Equations and assumptions

I write the reference impedance, units, and linear-versus-decibel domain before substituting numbers.

Gamma_in = S11RL = -20 log10(abs(S11))

Worked example

S11=−20 dB implies |Γ|=0.1, but marker frequency must also be checked.

Re-reading Cadence L-Matching and Stub Screens — calculation relationship — This is my explanatory redraw, not an imported RFDH figure or a measurement result.

Connecting it to my coursework and projects

I use this order when reading my stored L-section and single-stub screens. The trajectory is an archived simulation view, not a current rerun.

High-frequency engineering course hub

What I will check next

Visual chart readings may differ slightly from calculated values. A matching answer is incomplete without normalization, wavelength direction, and open/short-stub type.