{"id":368445,"date":"2024-05-24T06:11:57","date_gmt":"2024-05-24T06:11:57","guid":{"rendered":"\/forum\/forums\/topic\/waveguide-bending-loss-in-eme\/"},"modified":"2024-05-24T06:11:57","modified_gmt":"2024-05-24T06:11:57","slug":"waveguide-bending-loss-in-eme","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/waveguide-bending-loss-in-eme\/","title":{"rendered":"Waveguide bending loss in EME"},"content":{"rendered":"<p>I had been trying to calculate bending loss for a silicon waveguide. Initially, I tried with FEEM (the discussion is in the link: \/forum\/forums\/topic\/loss-vs-waveguide-bend-radius-in-lumerical-feem\/).<\/p>\n<p>Currently, I am trying to compare the results with that of the one obtained with EME.&nbsp;<\/p>\n<p>&nbsp;I have followed the instruction in this post (\/forum\/forums\/topic\/is-it-possible-to-simulate-bent-waveguide-using-eme\/) to check the bending loss using EME. I found that the loss for the same bend radius keeping varying with change in span of simulation region.&nbsp;<\/p>\n<p>The bending loss for 15 mm bent radius, as obtained from FEEM was 50 dB\/cm, whereas EME gives different values as shown (for same settings, but different simulation region span).<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/24-05-2024-1716531071-1.PNG\" alt=\"\"><\/p>\n<p>Here, 44.7 dB\/cm is the value obtained, which has been reduced to 7.8 dB\/cm for a larger simulation span.<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/24-05-2024-1716531095-2.PNG\" alt=\"\"><\/p>\n<p>How much span should I keep while performing EME simulation? Please suggest what can be done.<\/p>\n<p>Thank you.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-368445","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["111020","33648","438269"],"_bbp_author_ip":["184.24.96.177"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["243"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["368445"],"_bbp_forum_id":["27833"],"_bbp_engagement":["33648","111020","438269"],"_bbp_voice_count":["3"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["382928"],"_bbp_last_active_id":["382928"],"_bbp_last_active_time":["2024-09-18 02:29:42"]},"test":"anjaliarkgpian-iitkgp-ac-in"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/368445","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\/368445\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=368445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}