{"id":164286,"date":"2023-02-06T14:42:20","date_gmt":"2023-02-06T14:42:20","guid":{"rendered":"\/knowledge\/forums\/topic\/does-a-circuit-port-also-have-an-intrinsic-inductance-that-should-be-de-embedded-or-does-the-circuit-port-not-add-any-inductance\/"},"modified":"2023-07-31T12:36:39","modified_gmt":"2023-07-31T12:36:39","slug":"does-a-circuit-port-also-have-an-intrinsic-inductance-that-should-be-de-embedded-or-does-the-circuit-port-not-add-any-inductance","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/does-a-circuit-port-also-have-an-intrinsic-inductance-that-should-be-de-embedded-or-does-the-circuit-port-not-add-any-inductance\/","title":{"rendered":"Does a circuit port also have an intrinsic inductance that should be de-embedded, or does the circuit port not add any inductance?"},"content":{"rendered":"

Each port has a self inductance, as the E-field is injected between conductor and return path. In the case of a lumped gap port on a rectangle, this self inductance can be de-embedded, as the current and its H-field can be calculated on the port solution. The same is valid for circuit ports: they connect the conductor point with the return path point , inject a current, therefore have a H-field and a self inductance, but this can not be de-embedded as the self inductance of a circuit port can not be calculated. that’s why the recommendation is to keep it shorter than lambda\/20, what is issued as a warning by the solver, if the circuit port is too long, because than the self inductance which is part of the results could influence the result in a non tolerable way.<\/p>\n","protected":false},"template":"","class_list":["post-164286","topic","type-topic","status-publish","hentry","topic-tag-17-2","topic-tag-electromagnetics-electronics","topic-tag-excitations","topic-tag-hfss","topic-tag-lumped-port"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t