Help for Smith V3.10 - Fritz Dellsperger

Input of Circuit Elements for the Network
Check setting of reference impedance Zo. Click menu “Extras-Settings”, Tab “Smith-Chart” and set Zo
to desired value (usually 50 Ohm). Zo is displayed in Cursor- window.
Before selecting network elements from the toolbox, at least one datapoint must be placed.
If more than one datapoint is placed, select the datapoint from which the network transformation
should start by clicking to the desired datapoint or the checkbox in the window “Datapoints”. The
selected datapoint is marked with a bold square.
Click on one of the circuit elements in the toolbox.
From the toolbox following elements can be selected:
Except for RLC and serial transmission line with loss a locus for transformation is drawn in Smith-
Chart and the element is added to the schematic. Move the cursor along the locus while watching
cursor and values in Cursor-window and schematic.
Serial transmission line:
Click at desired value. This terminates the element insertion.
For RLC, input element values in dialogbox.
Undo with right mouse button if desired.
Change element value by double-clicking on element or element-value in Schematicwindow.
If attenuation � is 0 dB/m a locus for transformation is drawn in Smith-Chart and the
element is added to the schematic. Move the cursor along the locus while watching
cursor and values in Cursor-window and schematic.
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