Perform FFT on a Report

You can perform FFT on an existing 2D plot by using the Results > Perform FFT command. You can perform TDR on an existing 3D plot by using HFSS >Results > Perform FFT. This opens the Perform FFT on Traces in Reports dialog box.

1. Select the report you want from the list.
2. Select the FFT window type to apply. Windowing functions cause the FFT of the signal to have non-zero values away from w. Each window function trades off the ability to resolve comparable signals and frequencies versus the ability to resolve signals of different strengths and frequencies.
3. Select the function to apply to complex data.

   The new report appears under Results in the Project Manager. The new report name prefixes FFT to the name of the original report. Trace names are also prefixed with FFT.