{"id":50524,"date":"2020-12-10T05:22:10","date_gmt":"2020-12-10T05:22:10","guid":{"rendered":"\/forum\/forums\/topic\/the-accuracy-of-s-parameters-of-tm-mode-with-hfss\/"},"modified":"2020-12-10T05:22:10","modified_gmt":"2020-12-10T05:22:10","slug":"the-accuracy-of-s-parameters-of-tm-mode-with-hfss","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/the-accuracy-of-s-parameters-of-tm-mode-with-hfss\/","title":{"rendered":"The accuracy of S-parameters of TM mode with HFSS"},"content":{"rendered":"<p>I use the HFSS to calculate the transmittance of a dielectric when polarized light is incident.nI confirmed the S-parameters of TE and TM modes with floquet port, but the calculation accuracy differs greatly between TE and TM modes. When the dB value is converted to magnitude with python, TE matches the manual calculation with an accuracy of 10 ^ -6, while TM mode matches only about 10 ^ -3.nTo solve this problem, I tried the following methods.n?Expand the vacuum part above and below the dielectric to about 10 times the incident wavelength.n?Set the frequency in Analysis \/ Setup to 500 GHz and change the value of Maximum Number of Passes from 6 of default to 10 .n?Changed the value of Maximum Delta S from 0.02 of Default to 1e-6.nBut the accuracy did not improve.nIs it possible to obtain the calculation result for TM wave with the same accuracy as TE mode by further improving the above value? Also, is there a solution other than the above?n<\/p>\n","protected":false},"template":"","class_list":["post-50524","topic","type-topic","status-closed","hentry","topic-tag-floquet-port","topic-tag-hfss","topic-tag-s-parameters"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["22776"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["?&)\u001b"],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["1184"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["50524"],"_bbp_forum_id":["27793"],"_bbp_engagement":["178124","184024"],"_bbp_voice_count":["2"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["136430"],"_bbp_last_active_id":["136430"],"_bbp_last_active_time":["2020-12-18 02:57:56"]},"test":"yhoshino"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/50524","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\/50524\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=50524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}