{"id":394425,"date":"2024-11-20T03:52:38","date_gmt":"2024-11-20T03:52:38","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/characteristics-mode-analysis-of-a-unit-cell\/"},"modified":"2024-11-20T03:52:38","modified_gmt":"2024-11-20T03:52:38","slug":"characteristics-mode-analysis-of-a-unit-cell","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/characteristics-mode-analysis-of-a-unit-cell\/","title":{"rendered":"Characteristics Mode Analysis of a unit cell"},"content":{"rendered":"<p>&lt;p&gt;Hi everyone,&lt;\/p&gt;&lt;p&gt;I need help with a characteristic mode analysis (CMA) of my unit cell.&lt;\/p&gt;&lt;p&gt;I&#8217;m trying to conduct a CMA on my unit cell, but in the CMA solution type in HFSS, I&#8217;m unable to assign a boundary condition and Floquet port to the air box surrounding the unit cell. As a result, each time I attempt to run the simulation, I encounter an error message that states, &#8220;CMA requires a boundary and excitation.&#8221;&lt;\/p&gt;&lt;p&gt;Could someone please guide me on how to assign the appropriate boundary and excitation to the unit cell in this situation?&lt;\/p&gt;&lt;p&gt;Thank you!&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/20-11-2024-1732073941-unit cell and error message.png\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-394425","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["336816","20363"],"_bbp_author_ip":["156.62.3.23"],"_btv_view_count":["558"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["394425"],"_bbp_forum_id":["27793"],"_bbp_engagement":["20363","336816"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["394640"],"_bbp_last_active_id":["394640"],"_bbp_last_active_time":["2024-11-20 23:10:24"]},"test":"henry-ojukwuautuni-ac-nz"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/394425","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\/394425\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=394425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}