{"id":461437,"date":"2026-07-17T04:53:44","date_gmt":"2026-07-17T04:53:44","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fssmetasurface-simulation-in-hfss-sbr\/"},"modified":"2026-07-17T04:53:44","modified_gmt":"2026-07-17T04:53:44","slug":"fssmetasurface-simulation-in-hfss-sbr","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fssmetasurface-simulation-in-hfss-sbr\/","title":{"rendered":"FSS\/Metasurface Simulation in HFSS SBR+"},"content":{"rendered":"<p>&lt;p&gt;Hello,&lt;\/p&gt;&lt;p&gt;I have created and solved a metasurface in HFSS driven modal design. It has been verified but I need to simulate its performance for improving antenna to antenna coupling in a room setting, which is why I am switching to a new design of solution type SBR+. I know there are existing examples such as radome where a unit cell is first simulated in HFSS and processed by python to generate the Fresnel table (.rttbl), which is used to assign Fresnel boundary to SBR+ objects (here the radome).&nbsp;&lt;\/p&gt;&lt;p&gt;However, unlike the radome which is assumed to consist of one type of unit cell, my metasurface has two types of unit cell (1 bit, so two states) mixed up. In this case how should I simulate it in SBR+ then? Did anyone have similar experience before?&lt;\/p&gt;&lt;p&gt;I really appreciate any help. \ud83d\ude42&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-461437","topic","type-topic","status-publish","hentry","topic-tag-ansys-hfss","topic-tag-antenna","topic-tag-metamaterial-1","topic-tag-metasurface-1","topic-tag-sbr"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello,I have created and solved a metasurface in HFSS driven modal design. It has been verified but I need to simulate its performance for improving antenna to antenna coupling in a room setting, which is why I am switching to a new design of solution type SBR+. 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