{"id":407698,"date":"2025-01-30T10:47:27","date_gmt":"2025-01-30T10:47:27","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/hfss-unexplained-change-of-frequency-dependent-permeability\/"},"modified":"2025-01-30T17:06:42","modified_gmt":"2025-01-30T17:06:42","slug":"hfss-unexplained-change-of-frequency-dependent-permeability","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/hfss-unexplained-change-of-frequency-dependent-permeability\/","title":{"rendered":"[HFSS] Unexplained change of Frequency Dependent Permeability"},"content":{"rendered":"<p>&lt;p&gt;Hey,&lt;\/p&gt;&lt;p&gt;I am defining a frequency dependent complex permeability for a Custom Material over frequency dependent Data Points by importing a .tab file. (10 kHz to 100 MHz) When looking at the plotted data of that import file, everything looks like its supposed to, a smooth curve. But when I then check the &#8220;Property vs. Frequency&#8221; Plot in prior window, the plot will be approximated in a way that everything roughly below 100 kHz becomes linear, even though it wasnt in the original plot. Its the same for Magnetic Loss Tangent, but not as visible thats why I dont show it here. Does anybody have a clue where this behaviour comes from?&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-407698","topic","type-topic","status-answered","hentry","topic-tag-add-material","topic-tag-ansys-hfss","topic-tag-complex-permeability-1","topic-tag-frequency","topic-tag-material"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hey,I am defining a frequency dependent complex permeability for a Custom Material over frequency dependent Data Points by importing a .tab file. 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But when I then check the &quot;Property vs. Frequency&quot;\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/hfss-unexplained-change-of-frequency-dependent-permeability\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"[HFSS] Unexplained change of Frequency Dependent Permeability | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hey,I am defining a frequency dependent complex permeability for a Custom Material over frequency dependent Data Points by importing a .tab file. 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