Smith Chart Plot
Files:
(1) plotsmithchart.m
Usage:
(1) plotsmithchart(Zl,Zo)
Where Zl is the Load Impedence (possibly complex) and Zo is the Characteristic Line Impedence. Plots a smith chart, along with the reflection coefficient circle and the line of intersection with resistive component equal to 1.
(2) plotsmithchart
Without any parameters draws a blank smith chart. Wavelengths toward the generator are labeled around the perimeter.
Example calls:
(1) plotsmithchart(25,50)
Draws a smithchart,calculates and plots the reflection coefficient for a characteristic impedence of 50 ohms and a load impedence of 25 ohms.
(2) plotsmithchart(50+50j,75)
Same as (1) with a load impedence of 50+50j ohms.
(3) plotsmithchart
Plots a blank Smith Chart.
Cite As
Victor Aprea (2021). Smith Chart Plot (https://www.mathworks.com/matlabcentral/fileexchange/1923-smith-chart-plot), MATLAB Central File Exchange. Retrieved .
Comments and Ratings (49)
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Acknowledgements
Inspired: Smith Chart Utility
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example calls aren't included, I need it
the best Smith Chart tool I have seen around so far belongs to Herr Dellberger, has a demo free version:
http://www.fritz.dellsperger.net/smith.html
Thanks for the file. It would be more helpful if it can support more functions.
Awesome!
If it just plot the standard Smith chart without any input or output required will be even better.
Thanks very much!!
Can I read the exact value from this plot,for instance, Gama, SWR or angle
VEry nice.
The colors make the reading a bit harder. But the rest is cool.
If I may give a suggestion, appending
,'HitTest','off'
to all of your non-data plot commands will make them unselectable
nice!
thank you very much
THHHHHHHHHHHXXXXXXXXXXXXXXXXXX!!!!!
it's helpfull
Should do more things than just plotting it, for example,u can compute the conditional stable for each [S] maxtrix of 4-port network.
it's very useful if you work on transmission line
I would like to know how how to plot the frequency responce in the smith chart as appears on the most softwares. Thank you very much.
give more examples of smithchart simulation in MATLAB
Example calls
are not in file-m ?
I need it,
please help me
thanks
BAGAIMANA CARA PRAKTIS AGAR DAPAT MENGERTI DAN MAMPU MENJALAN MATLAB"SIMULASI"
thanks
It's really very good.
still needs improvement though but its good help for every1 and big time effort too especially in MATLAb ....keep up the good work ....
got some informations about plotting smith chart
Great program to verify hand-drawn SWR circles and determining the reflection coefficient.
program for basics and understanding, thanks
Good performance Thank!
ninguno
This program is good for only ONE value.
If you want to see how a system looks like in a range of frequency (e.g., an inductor from 1MHZ to 500MHZ), this is not your choice.
Asside from being capable of plotting impedances and calculating reflection coefficients, it also spews out a very nice Smith chart.
Nice program. No more messy Smith Chart needed anymore.