Exporting fields from HFSS

[jrk2]

Hi,

I am currently using HFSS to perform some simulations and wish to obtain the numerical value of fields within a slice through the centre of a structure. For this reason I have defined a plane which bisects the model. From what I understand there are three methods by which one may export the field values (as a csv or excel file):

1) by generating a data table in the report editor,
2) by right clicking on the field plot,
3) by using the field calculator

When I try to use the report editor to plot the fields I select the fields report type and am then presented with three categories of data that may be plotted: variables, output variables and calculator expressions. Unfortunately the first category does not contain any relevant variables, whilst the second and third are empty.

For this reason I obtain the fields by using the overlay plot function (and not the report editor). Unfortunately when I right click on the field plot I do not see any option for exporting the raw data.

Finally in the “fields calculator” I click on the quantity button and select E, and then the geometry button and select my bisecting surface. I then click on the Eval button and see the error message “the stack contents are incompatible with the current operation”. In the discussions which I have read on the HFSS forum many people discuss exporting solution data to a grid from the field calculator. However I’m not sure how they define this grid.

I would be most grateful for some advice on the correct procedure for exporting the fields

Kind Regards,
James

 

[navuho]

In the discussions which I have read on the HFSS forum many people discuss exporting solution data to a grid from the field calculator. However I’m not sure how they define this grid.

Hi, jrk2 !
The easy way is to define your own grid file "mypoint.pts " in a format of three columns: X Y Z (in meters!).
Then go to Calculator, chose "Quantity" you need to export, in "Export" menu do "Input grid points from file" "mypoints.pts"
and select "Output file name".

 

[jrk2]

Hi,

Thanks very much for this reply. Previously I have selected “calculate grid points”. I then entered the co-ordinates, for the surface on which I require the fields, into the boxes marked minimum and maximum. I assume that the spacing values relate to the interspacing between the points at which the fields are calculated, and can be chosen at random. Unfortunately I receive a pop-up message which reads “error in performing operation”