{"id":364565,"date":"2024-04-28T10:07:38","date_gmt":"2024-04-28T10:07:38","guid":{"rendered":"\/forum\/forums\/topic\/a-question-on-microstrip-line-s21-in-hfss\/"},"modified":"2024-04-28T10:07:38","modified_gmt":"2024-04-28T10:07:38","slug":"a-question-on-microstrip-line-s21-in-hfss","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/a-question-on-microstrip-line-s21-in-hfss\/","title":{"rendered":"A Question on Microstrip Line S21 in HFSS"},"content":{"rendered":"<p><span class=\"\">When I made modifications to a certain size variable in the microstrip line, the real and imaginary parts of the S21 model flipped (or moved half a cycle). When I converted the data to phase and amplitude, its amplitude was the same, but the phase difference was half a cycle.<\/span><span class=\"\"> I don&#8217;t understand the reason behind this. Experts who know the reason can help me analyze it. Thank you very much!<\/span><\/p>\n<p><span class=\"\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/28-04-2024-1714298737-re_im.png\" alt=\"\"><\/span><\/p>\n<p><img decoding=\"async\" style=\"font-size: 18.6667px\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/28-04-2024-1714298680-deg.png\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-364565","topic","type-topic","status-closed","hentry","topic-tag-ansys-hfss","topic-tag-hfss","topic-tag-RFIC-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["126918","1178"],"_bbp_author_ip":["23.192.127.11"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["394"],"_bbp_topic_status":["unanswered"],"_bbp_likes_count":["0"],"_bbp_topic_id":["364565"],"_bbp_forum_id":["27793"],"_bbp_engagement":["1178","126918"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["366666"],"_bbp_last_active_id":["366666"],"_bbp_last_active_time":["2024-05-14 01:32:06"]},"test":"221040021hdu-edu-cn"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/364565","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\/364565\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=364565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}