{"id":52640,"date":"2021-02-26T18:30:42","date_gmt":"2021-02-26T18:30:42","guid":{"rendered":"\/forum\/forums\/topic\/convergence-issue-with-hfss-eigenmode-simulation\/"},"modified":"2021-02-26T18:30:42","modified_gmt":"2021-02-26T18:30:42","slug":"convergence-issue-with-hfss-eigenmode-simulation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/convergence-issue-with-hfss-eigenmode-simulation\/","title":{"rendered":"Convergence Issue with HFSS Eigenmode Simulation"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi, I have been trying to run some eigenmode simulation in HFSS to do dispersion analysis for periodic structures. The problem I met is that the <strong>Maximum Delta Frequency Per Pass <\/strong>oscillates over passes and does not converge during simulation in many of my designs. Attached is an example which includes the model, boundaries, the setup, and the convergence graph. The phase delay across boundaries along X-axis is set to 0&deg; and the phase delay along Y-axis is assigned to a variable to be varied. In this particular simulation, the variable is 175&deg;.<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/6XJZV0A59PWP\/image.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/6XJZV0A59PWP\/image.png\" alt=\"image.png\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-52640","topic","type-topic","status-closed","hentry","topic-tag-eigenmode","topic-tag-hfss"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["24944"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["& \u0000\u0300\u0000\f\u0019\u0000\u0000\u0000\u0000\u0000\u0000?g"],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["3351"],"_bbp_subscription":["231378"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["52640"],"_bbp_forum_id":["27793"],"_bbp_engagement":["28551","69959","178124"],"_bbp_voice_count":["3"],"_bbp_reply_count":["10"],"_bbp_last_reply_id":["145823"],"_bbp_last_active_id":["145823"],"_bbp_last_active_time":["2021-03-10 22:09:56"]},"test":"zlem"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/52640","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\/52640\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=52640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}