restpos.blogg.se - Using smith chart

To show Mag/Angle for a z data in Data Reader, click More button in the Preferences dialog and choose : Magnitude or : Angle to show them in the Data Reader.

for line plot, the part outside the real and imag of Gamma rectangle （-1 real 1 & -1 imag 1） will be clipped.

for scatter plot, if real or imag part of Gamma is outside of interval, that data point will not be shown.

For complex: Gamma = (z-1)/(z+1), if the real part of z is negative,.

Use Scale In button on the Tools toolbar to zoom in a rectangle area.

From Origin 2019, Smith chart supports zooming in.The Smith Chart graph is created from the SMITHCHT.OTP template (installed to the Origin program folder). Click the Add button to add a constant SWR circle through the given point. Given the point position specified, select the circle point density and the line color. The data is then re-plotted.Ĭlick this button to reverse the real part axis of the Smith Chart. The Reinterpret Data as Mag / Angle ButtonĬlick this button to treat the active data plot as the Mag / Angle format, and convert the data into R / X format. (Note: R = real part, X = imaginary part)Ĭlick this button to convert the active data plot into the Mag / Angle format and put the data in the source worksheet. To update the Smith Chart tool with this change, click the Update button on the tool. Calculation of the length of a short circuited piece of transmission line to provide a required capacitive or. Impedance calculations on any transmission line, on any load. You can change the active data plot in the Smith Chart from the Data menu or by selecting the data plot icon in the legend. The important applications of a Smith Chart are as follows: Admittance calculations on any transmission line, on any load. If you have plotted multiple data sets into the Smith Chart, the Convert Data to Mag / Angle and the Reinterpret Data as Mag / Angle buttons act on the active data plot. Click Normalize to perform the normalization. Re-normalize the current Smith Chart by entering or selecting a factor, from the Factor combo box. Additionally, click the button to open the Smith Chart tool.

To customize the Smith Chart, edit the Plot Details and Axes dialog boxes. Typically we only want to use lossless devices such as capacitors, inductors, transmission lines, in our matching network so that we do not dissipate any power. In the opened dialog, click Reinterpret Data as Mag / Angle buttonĬlick the Smith Chart button on the 2D Graphs toolbar.Highlight the X and Y columns and plot a Smith Chart.If what you have is Mag and Angle(in degree) data for and want to plot a Smith chart from them, Requires a selection of at least one Y column of values and an associated X column īy default, the X and Y columns are treated as real part and imaginary part of Zl.