{"id":304456,"date":"2023-08-31T20:44:13","date_gmt":"2023-08-31T20:44:13","guid":{"rendered":"\/forum\/forums\/topic\/how-to-make-a-uniform-magnetic-field-in-hfss-using-magnetic-bias\/"},"modified":"2023-08-31T20:44:13","modified_gmt":"2023-08-31T20:44:13","slug":"how-to-make-a-uniform-magnetic-field-in-hfss-using-magnetic-bias","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-make-a-uniform-magnetic-field-in-hfss-using-magnetic-bias\/","title":{"rendered":"How to Make a Uniform Magnetic Field in HFSS Using Magnetic Bias"},"content":{"rendered":"<p>I am trying to simulate a split-ring resonator with a uniform static magnetic field being applied to it. I start by creating a ferrite material where I assign some value for the magnetic saturation. I end up with a geometry like the one below. The two large boxes on either end are vacuum and have radiation boundaries assigned to their faces. The rings and the square behind them have a perfect e boundary applied to them. I have a lumped port excitation on the SRR. The ferrite material is the slighlty larger box behind the SRR. It has a magnetic bias excitation applied to it. I assign an internal bias to it and then give it a value for the permeability tensor rotation. After I run the simulation, I am getting no magnetic field from the ferrite material. Can someone explain to me what I am doing wrong? Also, I wasn&#8217;t sure how the permeabiltiy tensor rotation affected the direction of the magnetic field. I figured I would mess around with it and figure it out, but if someone knows and wants to save me some time that would be amazing. There are a x, y, and z angle for it. I would appreciate any help.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" title=\"setup\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693514526-Ansys Help.png\" alt=\"\" width=\"1091\" height=\"512\"><\/p>\n","protected":false},"template":"","class_list":["post-304456","topic","type-topic","status-closed","hentry","topic-tag-hfss","topic-tag-permanent-magnet"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["3415","1178","19"],"_bbp_author_ip":["23.206.193.154"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["3164"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["304456"],"_bbp_forum_id":["27793"],"_bbp_engagement":["19","1178","3415"],"_bbp_voice_count":["3"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["309896"],"_bbp_last_active_id":["309896"],"_bbp_last_active_time":["2023-10-03 17:34:51"]},"test":"atw0034uah-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/304456","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\/304456\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=304456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}