{"id":355977,"date":"2024-03-07T20:40:48","date_gmt":"2024-03-07T20:40:48","guid":{"rendered":"\/forum\/forums\/reply\/355977\/"},"modified":"2024-03-07T20:40:48","modified_gmt":"2024-03-07T20:40:48","slug":"355977","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/355977\/","title":{"rendered":"Reply To: S-parameter causality issue"},"content":{"rendered":"<p>&lt;p&gt;Hi Dan,&nbsp;&lt;\/p&gt;&lt;p&gt;I&#8217;m also running into a similar issue where I cannot extract causal PDN Z-parameter models from my package or board design.&lt;\/p&gt;&lt;p&gt;If possibe, could you please post a screenshot of your recommended &#8220;Compute SYZ-parameters&#8221; setup window for the following senario?&lt;\/p&gt;&lt;p style=&#8221;padding-left: 40px;&#8221;&gt;<em>PDN Z-parameter extraction up to 10GHz<\/em>&lt;\/p&gt;&lt;p style=&#8221;padding-left: 40px;&#8221;&gt;<em>I reverted all of my capacitors models to C \/ ESR \/ ESL approximations to keep things simple.&nbsp;<\/em>&lt;\/p&gt;&lt;p&gt;Besides the frequency setup range, I am also curious what you recommend for the other setup options in this window.&nbsp; For reference, I have tried about a dozen different combinations of settings and none of my results can pass 2.5% causality tolerance.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-355977","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/355977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/355977\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=355977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}