{"id":319446,"date":"2023-11-25T13:17:59","date_gmt":"2023-11-25T13:17:59","guid":{"rendered":"\/forum\/forums\/topic\/emitted-power-calculation-from-a-electric-dipole-through-transmission-minitor\/"},"modified":"2024-01-08T22:28:48","modified_gmt":"2024-01-08T22:28:48","slug":"emitted-power-calculation-from-a-electric-dipole-through-transmission-minitor","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/emitted-power-calculation-from-a-electric-dipole-through-transmission-minitor\/","title":{"rendered":"Emitted power calculation from a electric dipole through transmission minitor"},"content":{"rendered":"<p>To calculate the fraction of power emitted in the forward or backward direction we use a transmission monitor just the top or bottom of the structure, where the electric dipole is situated inside the metastructure. Then by projecting them into a far field, we can calculate the electric field intensity in the far field on a sphere. We are taking a rectangular monitor for the calculation and the monitor has a finite size and is placed some finite distance from the metastructure, which is associated with some collection angle less than 90 degrees. By projecting them into a sphere (including the forward and backward monitors) eventually, we can get total emission in both directions, which will not be equal to the dipole power, as in each case we have taken some solid angle less than 90 degrees and missed the information of some angle. How to resolve this issue where I can truly calculate the total emission in forward direction (from 0 to pi) and backward emission (from pi to 2pi)?<\/p>\n<p>And the way the integrated power calculation is shown here will work for a plane wave source but as we are working with an electric dipole source which has a certain angular spread in radiation, how will it be modified?&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/25-11-2023-1700918259-mceclip0.png\"><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-319446","topic","type-topic","status-closed","hentry","topic-tag-farfield-2","topic-tag-fdtd","topic-tag-lumerical"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["55269","33648"],"_bbp_author_ip":["23.52.43.81"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["874"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1704752885:203841"],"_bbp_topic_id":["319446"],"_bbp_forum_id":["27833"],"_bbp_engagement":["33648","55269"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["343723"],"_bbp_last_active_id":["343723"],"_bbp_last_active_time":["2024-01-08 22:57:59"]},"test":"sagarphysics-iitm-ac-in"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/319446","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\/319446\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=319446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}