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CST 2012: Spiral antenna design
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Hello all,
I have one problem with designing log-spriral antenna. I used CST MWS 2012. I created analytical curve with these parameter:
But I have problem with number of points (we can see in the apendix). I need to increase the number of points the analytical curve and create a smoother curve. Of course, I wrote a matlab coda for sprial antenna generating, but I would use the analytical curve in CST.
Do you have some idea? How to increase the number of points?
Thank you for answer
Vladouch
It was about 10 years ago.
I have one problem with designing log-spriral antenna. I used CST MWS 2012. I created analytical curve with these parameter:
Code:
' body Sub Main () '@ define curve analytical: curve1:rameno With AnalyticalCurve .Reset .Name "rameno" .Curve "curve1" .LawX "0.5*diameter_inner*Exp(Ln(diameter_outer/diameter_inner)*t/(2*pi*num_turns))*Cos(t)" .LawY "0.5*diameter_inner*Exp(Ln(diameter_outer/diameter_inner)*t/(2*pi*num_turns))*Sin(t)" .LawZ "0" .ParameterRange "0", "2*pi*num_turns" .Create End With End Sub
Do you have some idea? How to increase the number of points?
Thank you for answer
Vladouch
When I did my Terahertz spiral antenna design in ADS, I created all the points in a Excel spreadsheet, then I imported those points as the X-Y coordinates to draw a custom line. I am sure you can do the same in CST.
I did a logarithmic Spiral using this equation
See attached Excel spreadsheet.
It was about 10 years ago.
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