{"id":457152,"date":"2026-04-27T10:18:33","date_gmt":"2026-04-27T10:18:33","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/assigning-excitation-in-hfss\/"},"modified":"2026-04-27T10:18:33","modified_gmt":"2026-04-27T10:18:33","slug":"assigning-excitation-in-hfss","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/assigning-excitation-in-hfss\/","title":{"rendered":"Assigning Excitation in HFSS"},"content":{"rendered":"<p>&lt;p&gt;Hi All,&lt;\/p&gt;&lt;p&gt;I&#8217;ve assigned following voltage to my PCB imported in HFSS solver. While analyzing, it showed error &#8220;No excitation are defined&#8221;. Do I need to define &#8216;t&#8217; ? If yes, how to do that?&lt;br&gt;&lt;br&gt;I&#8217;ve observed one more thing, since this voltage is a time dependent one, how can evaluated value come out to be exact values when t is not defined at any instant?&lt;br&gt;&lt;br&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/04\/27-04-2026-1777284935-mceclip0.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-457152","topic","type-topic","status-publish","hentry","topic-tag-ansys-help","topic-tag-ansys-hfss","topic-tag-simulation"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27793"],"_bbp_topic_id":["457152"],"_bbp_subscription":["671463","15859"],"_bbp_author_ip":["14.139.195.212"],"_bbp_last_reply_id":["457215"],"_bbp_last_active_id":["457215"],"_bbp_last_active_time":["2026-04-27 23:07:46"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["671463","15859"],"_btv_view_count":["24"],"_bbp_topic_status":["unanswered"]},"test":"ss135iitbbs-ac-in"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/457152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/457152\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=457152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}