Scaling a Source's Magnitude and Phase
You can scale the magnitude and set the phase of ports, voltage and current sources, Eigenmodes, Characteristic Modes, and incident waves in the Edit post process sources dialog box. For HFSS modal projects you specify the total voltages. For HFSS terminal projects, you can also select either Incident Voltage or Total Voltage. The incident voltage selection includes magnitude, phase, and the impedance of a hypothetical external line. It is the user specified voltage at an input. The Total Voltage is incident voltage plus reflected voltage, that is, VT = Vi + Vr. For HFSS Transient Network projects, the Edit Sources dialog includes tabs that let you specify scales for Spectral and Transient data separately. For HFSS Transient, Edit Sources is disabled.
For Driven Modal and Terminal Analysis solution types that involve near or far fields, a Source Contexts tab appears on the Edit post process sources dialog box. This provides a means to select the sources to use as context when creating a radiated field report. The tab lists the same sources as the Spectral Fields tab. Sources are scaled by exciting a single source (the selected context in the reporter dialog) while turning off all other sources.
For designs containing finite arrays, you have the option to create a Source group. The new Source Group will allow the user to activate a subset of the virtual excitations (e.g. array[5,5]port1:2 …) instead of the physical excitations associated with the unit cell(s).
You may select Use Per-Element Power Specification for Parametric Array in Edit Sources when only a Parametric Array exists in the scene.
When you select the option, Edit Sources defines the input power of an element before applying the Aperture Taper configured in Array Weightings. The Parametric Array with this option gives results similar to HFSS post-processing feature of Antenna Array, and couplings analysis and Enhanced Radiated Power Accuracy are not supported.
You can also Save to File and Load from File, where the file is comma delimited data (.csv) format or tab delimited data (.txt). This can help in defining source values for projects with a large number of sources. An example of the .csv format for HFSS follows:
Name,Magnitude,Phase
Port1:1,1W,0deg
Port2:1,0W,0deg
Port3:1,0W,0deg
An example of the tab delimited format follows:
Name Magnitude Phase
Port1:1 1W 0deg
Port2:1 0W 0deg
Port3:1 0W 0deg
Note: A Beta feature for HFSS, Hfss Interactive Dialogs, allows you run the Edit Sources dialog and the Antenna Parameters dialog in modeless fashion, that is, if you Edit Sources for magnitide or renormalization, affected Antenna Parameters update. Edits for sources that cause an Update of grids include:
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Source is created. A new row will be added to grids.
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Sources are deleted. Corresponding sources in grids will be deleted.
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Source name is changed.Name updates in grids.
All changes will be saved in the dialog after the Edit Sources Sheet is closed, but they will not be applied until you click Apply or OK. The dialog supports undo and redo for creating, deleting and renaming elements.
If you edit excitations or ports, or create source groups in the Far Field Setup, the Edit Source dialog will close.
Scaling Sources for HFSS Transient Network
Specifying Source Contexts for Creating Radiated Field Reports