Plotting the Phase of E Tangential to a Line/Curve

Description

This recipe generates a 2D plot of the phase of an E-field whose vector component is tangential to a line. The line may also be a curve (faceted polyline).

Usage Examples

This calculation could be used to display the change in phase of the E field tangential to a circular path within a cylindrical dielectric resonator, when used on either a driven or eigensolution problem. Identifying the phase change along this curved path is often necessary to determine the mode index (e.g., Mode 10) which a particular eigensolution or S-parameter resonance represents.

Prerequisites

You must define the line along which the phase is to be plotted before performing this calculation. Use the Modeler>Draw>Line command.

Calculator Operation	Resulting Stack Display (top entry only unless noted)
Quantity>E	CVc : <Ex, Ey, Ez>
Geometr>Line>{select desired line}	Lin : Line(line1) (above line is example; user’s may vary)
Unit Vec>Tangent	Vec : LineTangent
Complex>CmplxReal	CVc : CmplxR(LineTangent) (converts unit vector to complex vector)
Dot	CSc : Dot(<Ex,Ey,Ez>),CmplxR(...
Complex>CmplxPhase	Scl : Phase(Dot(<Ex,Ey,Ez>), ...
Add Type: Ephase OK	Ephase : Phase(Dot(<Ex,Ey,Ez>),… (User defined Named Expression Ephase is added)
Done	{exit field calculator window}
HFSS>Results> Create Fields Report> Rectangular Plot Geometry: Line1 Category: Calculator Expressions Quantity: Ephase New Report	{2D graph displayed} (y axis is E field phase in *deg* and x axis is position along line in drawing units)