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Multiple plane wave sources

Posted Apr 11, 2011, 6:28 p.m. EDT RF & Microwave Engineering Version 4.1 2 Replies

Irfan
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Given an antenna array of half wave dipoles. I want to measure terminal voltage at each antenna terminal when multiple plane waves are incident upon this array from different directions.

I need to know how to have multiple, independent plane wave sources in simulation?, for example one source at phi=45 degrees and the other at phi=50 degrees and many more possible.

Thanks

Irfan
2 Replies Last Post Apr 13, 2011, 9:52 a.m. EDT
Shakeeb Bin Hasan
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Posted: 1 decade ago Apr 12, 2011, 5:29 a.m. EDT
Are you using scattering module? In that case I feel that you could just write the analytical expression of impinging plane waves in the incident field and that should do the trick.
Are you using scattering module? In that case I feel that you could just write the analytical expression of impinging plane waves in the incident field and that should do the trick.
Irfan
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Posted: 1 decade ago Apr 13, 2011, 9:52 a.m. EDT
Thanks Shakeeb, I got this reply from COMSOL support too;
"Dear Irfan,

Thank you for contacting COMSOL Support.

Setting up multiple plane waves is the same as setting up a single plane
wave. Whereas you might currently write:
exp(j*emw.k0*(x*cos(phi)+y*sin(phi)))
you could write:
exp(j*emw.k0*(x*cos(phi)+y*sin(phi)))+exp(j*emw.k0*(x*cos(phi2)+y*sin(phi2)))

where phi and phi2 and so on are your angles of interest, and so on.

Best Regards,
Your COMSOL Technical Support Team"
Thanks Shakeeb, I got this reply from COMSOL support too; "Dear Irfan, Thank you for contacting COMSOL Support. Setting up multiple plane waves is the same as setting up a single plane wave. Whereas you might currently write: exp(j*emw.k0*(x*cos(phi)+y*sin(phi))) you could write: exp(j*emw.k0*(x*cos(phi)+y*sin(phi)))+exp(j*emw.k0*(x*cos(phi2)+y*sin(phi2))) where phi and phi2 and so on are your angles of interest, and so on. Best Regards, Your COMSOL Technical Support Team"

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