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Where are these strange spots come from? (V4.2 RF module)

Posted 1 mar 2012, 00:32 GMT-5 RF & Microwave Engineering Version 4.2 3 Replies

Pengfei Yang
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My model is to stimulate a Ag nanowire with a gaussion beam, it's in 3D.

When I mapped the field distribution, there come lots of strange spots. see the attachment.

1. Do you guys have seen this befor? How to clear them ?
2. Do these sopts will influence the exactness of my result ?

Attachments:

3 Replies Last Post 1 mar 2012, 05:33 GMT-5
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 1 mar 2012, 02:34 GMT-5
Hi
What exactly are you shwing us the EM field ?
for me it looks like some standing waves, not astonishing if you have multiple reflections from interfaces
--
Good luck
Ivar
Hi What exactly are you shwing us the EM field ? for me it looks like some standing waves, not astonishing if you have multiple reflections from interfaces -- Good luck Ivar
Pengfei Yang
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Posted: 1 decade ago 1 mar 2012, 02:52 GMT-5
My problem is not the standing wave, it's the fleck. I attach another PIC, and it's Enorm
My problem is not the standing wave, it's the fleck. I attach another PIC, and it's Enorm

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Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 1 mar 2012, 05:33 GMT-5
Hi

I beleive that is your mesh pattern, always check your mesh results by changing under Plot Quality: smooting : none and Wireframe grid

--
Good luck
Ivar
Hi I beleive that is your mesh pattern, always check your mesh results by changing under Plot Quality: smooting : none and Wireframe grid -- Good luck Ivar

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