{"id":457892,"date":"2026-05-08T17:28:40","date_gmt":"2026-05-08T17:28:40","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/process-for-simulating-multiple-antennas\/"},"modified":"2026-05-08T17:28:40","modified_gmt":"2026-05-08T17:28:40","slug":"process-for-simulating-multiple-antennas","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/process-for-simulating-multiple-antennas\/","title":{"rendered":"Process for simulating multiple antennas"},"content":{"rendered":"<p>&lt;div&gt;Hello esteemed forum members,&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;I am currently working on the simulation of a 6-antenna microstrip patch array in the same environment (HFSS\/CST). My goal is to obtain the complete S-parameter matrix of the system, considering a multistatic operating scheme.&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;Specifically, I want to configure the simulation so that each antenna acts as a transmitter one at a time, while the others function as receivers. For example:&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;Antenna 1 as Tx &rarr; obtain S21, S31, S41, S51, S61&lt;\/div&gt;&lt;div&gt;Antenna 2 as Tx &rarr; obtain S12, S32, S42, S52, S62&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;and so on until all combinations are completed.&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;I would like to know the key considerations and the correct procedure for:&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;Defining the excitation ports in a multi-antenna array&lt;\/div&gt;&lt;div&gt;Accurately obtaining all S-parameters without errors due to coupling or port configuration&lt;\/div&gt;&lt;div&gt;Correctly configuring the radiation boundary (PML) and spacing between antennas&lt;\/div&gt;&lt;div&gt;Avoiding convergence problems or spurious modes in the simulation&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;Any guidance or recommendations would be greatly appreciated.&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;Thank you very much.&lt;\/div&gt;<\/p>\n","protected":false},"template":"","class_list":["post-457892","topic","type-topic","status-publish","hentry","topic-tag-antenna-design","topic-tag-antenna-parameters-1","topic-tag-scattering"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27793"],"_bbp_topic_id":["457892"],"_bbp_subscription":["685435","678857"],"_bbp_author_ip":["45.235.140.5"],"_bbp_last_reply_id":["458181"],"_bbp_last_active_id":["458181"],"_bbp_last_active_time":["2026-05-14 17:46:02"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["685435","678857"],"_btv_view_count":["71"],"_bbp_topic_status":["unanswered"]},"test":"dnaranjos3est-ups-edu-ec"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/457892","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\/457892\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=457892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}