{"id":365250,"date":"2024-05-02T15:22:24","date_gmt":"2024-05-02T15:22:24","guid":{"rendered":"\/forum\/forums\/reply\/365250\/"},"modified":"2024-05-02T15:23:09","modified_gmt":"2024-05-02T15:23:09","slug":"365250","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365250\/","title":{"rendered":"Reply To: Far-field planar mode projection"},"content":{"rendered":"<p>&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;In the settings https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034917353-FDE-solver-analysis-Modal-Analysis-Tab&nbsp; it did not mention what method it is used for plannar projection. It might be the regular farfield projection with scaling distance, which is not accurate for small distance. Consideting its fast calculation, it might not use farfieldexact, which requires raw data in the uniform material: https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034914713-Far-field-projections-in-FDTD-overview&lt;\/p&gt;&lt;p&gt;So there is a price to pay when you try to simplify the calculation.&nbsp; The correct method is to use FDTD:&lt;\/p&gt;&lt;p&gt;https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034914833-Adjusting-the-projection-distance-in-far-field-projections&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-365250","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"In the settings https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034917353-FDE-solver-analysis-Modal-Analysis-Tab it did not mention what method it is used for plannar projection. It might be the regular farfield projection with scaling distance, which is not accurate for small distance. Consideting its fast calculation, it might not use farfieldexact, which requires raw data in the uniform material: https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034914713-Far-field-projections-in-FDTD-overviewSo there is a price\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365250\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: Far-field planar mode projection | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"In the settings https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034917353-FDE-solver-analysis-Modal-Analysis-Tab it did not mention what method it is used for plannar projection. It might be the regular farfield projection with scaling distance, which is not accurate for small distance. Consideting its fast calculation, it might not use farfieldexact, which requires raw data in the uniform material: https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034914713-Far-field-projections-in-FDTD-overviewSo there is a price\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365250\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-05-02T15:22:24+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-05-02T15:23:09+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Far-field planar mode projection | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"In the settings https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034917353-FDE-solver-analysis-Modal-Analysis-Tab it did not mention what method it is used for plannar projection. It might be the regular farfield projection with scaling distance, which is not accurate for small distance. Consideting its fast calculation, it might not use farfieldexact, which requires raw data in the uniform material: https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034914713-Far-field-projections-in-FDTD-overviewSo there is a price\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/365250\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/365250\\\/#listItem\",\"name\":\"Reply To: Far-field planar mode projection\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/365250\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Far-field planar mode projection\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/365250\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/365250\\\/\",\"name\":\"Reply To: Far-field planar mode projection | Ansys Learning Forum\",\"description\":\"In the settings https:\\\/\\\/optics.ansys.com\\\/hc\\\/en-us\\\/articles\\\/360034917353-FDE-solver-analysis-Modal-Analysis-Tab it did not mention what method it is used for plannar projection. It might be the regular farfield projection with scaling distance, which is not accurate for small distance. Consideting its fast calculation, it might not use farfieldexact, which requires raw data in the uniform material: https:\\\/\\\/optics.ansys.com\\\/hc\\\/en-us\\\/articles\\\/360034914713-Far-field-projections-in-FDTD-overviewSo there is a price\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/365250\\\/#breadcrumblist\"},\"datePublished\":\"2024-05-02T15:22:24+00:00\",\"dateModified\":\"2024-05-02T15:23:09+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Reply To: Far-field planar mode projection | Ansys Learning Forum","description":"In the settings https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034917353-FDE-solver-analysis-Modal-Analysis-Tab it did not mention what method it is used for plannar projection. It might be the regular farfield projection with scaling distance, which is not accurate for small distance. Consideting its fast calculation, it might not use farfieldexact, which requires raw data in the uniform material: https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034914713-Far-field-projections-in-FDTD-overviewSo there is a price","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365250\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365250\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/forum","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365250\/#listItem","name":"Reply To: Far-field planar mode projection"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365250\/#listItem","position":2,"name":"Reply To: Far-field planar mode projection","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization","name":"Ansys Learning Forum","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/forum\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365250\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365250\/","name":"Reply To: Far-field planar mode projection | Ansys Learning Forum","description":"In the settings https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034917353-FDE-solver-analysis-Modal-Analysis-Tab it did not mention what method it is used for plannar projection. 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Consideting its fast calculation, it might not use farfieldexact, which requires raw data in the uniform material: https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034914713-Far-field-projections-in-FDTD-overviewSo there is a price","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365250\/#breadcrumblist"},"datePublished":"2024-05-02T15:22:24+00:00","dateModified":"2024-05-02T15:23:09+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Reply To: Far-field planar mode projection | Ansys Learning Forum","og:description":"In the settings https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034917353-FDE-solver-analysis-Modal-Analysis-Tab it did not mention what method it is used for plannar projection. 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