RF Network Simulator (RFnetSim)

Components

Passives

R

L

C

Blocks

Transmission line

Microstrip

Substrate

Via

Touchstone .s2p

Touchstone .s1p

Transformer

Ports & ground

Port

Ground

Drag onto canvas. Wire tool: click terminal A then B.
Click part to select. Space rotates. Delete deletes.
Double-click part to edit values / parasitics / Touchstone file.

Plot controls

Frequency sweep

Start (MHz)

Stop (MHz)

Points

# stability circles

Stability circles (Source) Stability circles (Load)

Runs X·σ

0%

Traces

Stability circles are shown on the Smith tab only (Source/Load controls are in Frequency sweep).

Markers

Choose a marker (or leave as Auto) then click the plot to place it.

Marker	f (GHz)	S11 (dB)	S21 (dB)	S12 (dB)	S22 (dB)

EM is reserved: future 2D microstrip EM solver with substrate stack-up, generating an S-parameter block insertable into the schematic.

Rect

Smith

K/B1

Group delay

Y

EM (reserved)

Reserved for future work: 2D EM solver for arbitrary microstrip shapes + substrate definitions, producing optimised S-parameters and exporting as a block that can be dropped into the schematic.