Plotting the Maximum Magnitude of E Tangential to a Line/Curve
Description:
This recipe generates a 2D plot of the maximum magnitude of an E-field tangential to a line. The line may also be a faceted curve. The maximum magnitude is not necessarily tied to the same input phase value along the length of the line.
Usage Example(s):
This calculation could be used to display the maximum magnitude of an E-field at all points along a line or curve in a transmission line structure, where it is the maximum magnitude and not the magnitude along the line corresponding to a single „snapshot in time‟ (single port excitation phase) that is of interest. Such data could be used to determine whether the present design might exceed dielectric breakdown voltage in a particular location.
Prerequisites:
You should define the line along which the field data is to be plotted before performing this calculation. Use the Modeler>Draw>Line command.
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Calculator Operation |
Resulting Stack Display (top entry only unless noted) |
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Quantity>E |
CVc : <Ex, Ey, Ez> |
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Geometry>Line>{select desired line} |
Lin : Line(line1) (above line is example; user’s may vary) |
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Unit Vec>Tangent |
Vec : LineTangent |
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Complex>CmplxReal |
CVc : CmplxR(LineTangent) (converts unit vector to complex vector) |
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Dot |
CSc : Dot(<Ex,Ey,Ez>),CmplxR(... |
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Complex>CmplxPeak |
Scl : CmplxMag(Dot(<Ex,Ey,Ex ... (above quantity is the maximum magnitude of the E-field tang. to the line. To obtain the mag. associated with a particular port phase excitation, enter a number into the stack and use the Complex>AtPhase operation instead.) |
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Add Type: Et_max OK |
Et_max : Phase(Dot(<Ex,Ey,Ez>),… (User defined Named Expression Et_max is added) |
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Done |
{exit field calculator window} |
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HFSS>Results>Create Fields Report>Rectangular Plot Geometry: Line1 New Report |
{2D graph displayed} (y axis is E field mag in v/m and x axis is position along line in drawing units) |