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Issue of taking absolute value of source signal

Posted 02.07.2024, 12:33 GMT-4 2 Replies

Abdulhadi Aldawsari
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Hello I assigned a modulated gaussian pulse to a circle in 2D through electric current density. However, the result when the wave propagates does not show the negative part as if it is in absolute value form. This is verified by a probe result. How to cancel the absolute effect?

Thank you

2 Replies Last Post 16.08.2024, 13:39 GMT-4
Robert Koslover Certified Consultant
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Posted: 9 months ago 02.07.2024, 13:20 GMT-4
Updated: 9 months ago 02.07.2024, 13:20 GMT-4

Any chance you are plotting the norm (i.e., magnitude) of your signal vs. time? In many cases, Comsol's default/suggested plots are of the norms of values of interest. If that's not your problem, then I suggest you post your model to the forum so that people can see what you are actually trying to do.

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
Any chance you are plotting the norm (i.e., magnitude) of your signal vs. time? In many cases, Comsol's default/suggested plots are of the norms of values of interest. If that's not your problem, then I suggest you post your model to the forum so that people can see what you are actually trying to do.
Abdulhadi Aldawsari
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Posted: 8 months ago 16.08.2024, 13:39 GMT-4
Updated: 8 months ago 16.08.2024, 13:54 GMT-4

Thank you. It seems COMSOL by default plot normE rather than Ez. Changing normE to Ez solved the problem.

Thank you

Thank you. It seems COMSOL by default plot normE rather than Ez. Changing normE to Ez solved the problem. Thank you

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