{"id":390139,"date":"2024-10-17T02:25:46","date_gmt":"2024-10-17T02:25:46","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/"},"modified":"2024-10-17T12:24:46","modified_gmt":"2024-10-17T12:24:46","slug":"poynting-vector-calculations-in-the-far-field-3","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/","title":{"rendered":"Poynting vector calculations in the far-field"},"content":{"rendered":"<p>&lt;p&gt;Hello. Please I need help regarding how can I calculate the normal component of the Poynting vector directly from the far-field Electric fields ? I used the following script, but it did not work:&lt;br&gt;mon_name = &#8220;xz&#8221;;&lt;br&gt;f = getdata(mon_name, &#8220;f&#8221;);&lt;br&gt;# Get the electric field components in the far field&lt;br&gt;E_squared = farfield2d(mon_name, 1, 2000);&lt;br&gt;theta = farfieldangle(&#8220;xz&#8221;); # Get angle data if needed for integration&lt;br&gt;# Calculate the normal component of the Poynting vector using pre-defined constants&lt;br&gt;epsilon0 = 8.854187817e-12; # Permittivity of free space&lt;br&gt;Poynting_normal = sqrt(epsilon0 \/ mu0) * E_squared;&lt;br&gt;# Integrate the Poynting vector over the specified solid angle&lt;br&gt;x=getdata(mon_name,&#8221;x&#8221;);&lt;br&gt;z=getdata(mon_name,&#8221;z&#8221;);&lt;br&gt;T2 = 0.5 * integrate(Poynting_normal); # Power in watts&lt;br&gt;# get power injected by source (Watts)&lt;br&gt;sp=sourcepower(f);&lt;br&gt;# Normalize to source power&lt;br&gt;T2 = T2 \/ sp;&lt;br&gt;?&#8221;Total Scattered Power: &#8221; + num2str(T2);&lt;br&gt;?&#8221;Source power (Watts): &#8220;+num2str(sp);&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-390139","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello. Please I need help regarding how can I calculate the normal component of the Poynting vector directly from the far-field Electric fields ? I used the following script, but it did not work:mon_name = &quot;xz&quot;;f = getdata(mon_name, &quot;f&quot;);# Get the electric field components in the far fieldE_squared = farfield2d(mon_name, 1, 2000);theta = farfieldangle(&quot;xz&quot;); #\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/\" \/>\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=\"Poynting vector calculations in the far-field | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hello. Please I need help regarding how can I calculate the normal component of the Poynting vector directly from the far-field Electric fields ? I used the following script, but it did not work:mon_name = &quot;xz&quot;;f = getdata(mon_name, &quot;f&quot;);# Get the electric field components in the far fieldE_squared = farfield2d(mon_name, 1, 2000);theta = farfieldangle(&quot;xz&quot;); #\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-10-17T02:25:46+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-10-17T12:24:46+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Poynting vector calculations in the far-field | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hello. Please I need help regarding how can I calculate the normal component of the Poynting vector directly from the far-field Electric fields ? I used the following script, but it did not work:mon_name = &quot;xz&quot;;f = getdata(mon_name, &quot;f&quot;);# Get the electric field components in the far fieldE_squared = farfield2d(mon_name, 1, 2000);theta = farfieldangle(&quot;xz&quot;); #\" \/>\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\\\/topic\\\/poynting-vector-calculations-in-the-far-field-3\\\/#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\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/poynting-vector-calculations-in-the-far-field-3\\\/#listItem\",\"name\":\"Poynting vector calculations in the far-field\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/poynting-vector-calculations-in-the-far-field-3\\\/#listItem\",\"position\":3,\"name\":\"Poynting vector calculations in the far-field\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}}]},{\"@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\\\/topic\\\/poynting-vector-calculations-in-the-far-field-3\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/poynting-vector-calculations-in-the-far-field-3\\\/\",\"name\":\"Poynting vector calculations in the far-field | Ansys Learning Forum\",\"description\":\"Hello. Please I need help regarding how can I calculate the normal component of the Poynting vector directly from the far-field Electric fields ? I used the following script, but it did not work:mon_name = \\\"xz\\\";f = getdata(mon_name, \\\"f\\\");# Get the electric field components in the far fieldE_squared = farfield2d(mon_name, 1, 2000);theta = farfieldangle(\\\"xz\\\"); #\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/poynting-vector-calculations-in-the-far-field-3\\\/#breadcrumblist\"},\"datePublished\":\"2024-10-17T02:25:46+00:00\",\"dateModified\":\"2024-10-17T12:24:46+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":"Poynting vector calculations in the far-field | Ansys Learning Forum","description":"Hello. Please I need help regarding how can I calculate the normal component of the Poynting vector directly from the far-field Electric fields ? I used the following script, but it did not work:mon_name = \"xz\";f = getdata(mon_name, \"f\");# Get the electric field components in the far fieldE_squared = farfield2d(mon_name, 1, 2000);theta = farfieldangle(\"xz\"); #","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/#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\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/forum\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/#listItem","name":"Poynting vector calculations in the far-field"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/#listItem","position":3,"name":"Poynting vector calculations in the far-field","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}}]},{"@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\/topic\/poynting-vector-calculations-in-the-far-field-3\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/","name":"Poynting vector calculations in the far-field | Ansys Learning Forum","description":"Hello. Please I need help regarding how can I calculate the normal component of the Poynting vector directly from the far-field Electric fields ? I used the following script, but it did not work:mon_name = \"xz\";f = getdata(mon_name, \"f\");# Get the electric field components in the far fieldE_squared = farfield2d(mon_name, 1, 2000);theta = farfieldangle(\"xz\"); #","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/#breadcrumblist"},"datePublished":"2024-10-17T02:25:46+00:00","dateModified":"2024-10-17T12:24:46+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":"Poynting vector calculations in the far-field | Ansys Learning Forum","og:description":"Hello. Please I need help regarding how can I calculate the normal component of the Poynting vector directly from the far-field Electric fields ? I used the following script, but it did not work:mon_name = &quot;xz&quot;;f = getdata(mon_name, &quot;f&quot;);# Get the electric field components in the far fieldE_squared = farfield2d(mon_name, 1, 2000);theta = farfieldangle(&quot;xz&quot;); #","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/","article:published_time":"2024-10-17T02:25:46+00:00","article:modified_time":"2024-10-17T12:24:46+00:00","twitter:card":"summary_large_image","twitter:title":"Poynting vector calculations in the far-field | Ansys Learning Forum","twitter:description":"Hello. Please I need help regarding how can I calculate the normal component of the Poynting vector directly from the far-field Electric fields ? I used the following script, but it did not work:mon_name = &quot;xz&quot;;f = getdata(mon_name, &quot;f&quot;);# Get the electric field components in the far fieldE_squared = farfield2d(mon_name, 1, 2000);theta = farfieldangle(&quot;xz&quot;); #"},"aioseo_meta_data":{"post_id":"390139","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"content","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":true,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2024-10-28 16:22:55","updated":"2024-10-28 16:22:55","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tPoynting vector calculations in the far-field\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/forum\/topics\/"},{"label":"Poynting vector calculations in the far-field","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/poynting-vector-calculations-in-the-far-field-3\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["295373","199"],"_bbp_author_ip":["38.46.221.119"],"_btv_view_count":["126"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["390139"],"_bbp_forum_id":["27793"],"_bbp_engagement":["199","295373"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["390236"],"_bbp_last_active_id":["390236"],"_bbp_last_active_time":["2024-10-17 12:24:39"]},"test":"halamohmmed7gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/390139","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\/390139\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=390139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}