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Memory error

Greatly appreciate the opportunity to submit a query.

I built a microstrip patch of about the same dimensions as the one provided in the examples. The example renders fully withour glitch. My patch doesn't; it gives a not enough memory for matrix error.

The attachments give an idea of the geometries involved: top one is the patch example, and the second one is my attempt.

Would be appreciative of some advice.

Regards,

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Feko

v2021.1

Accepted answers

Mel

There seems to be extremely fine meshing in 4 locations. This may or may not be necessary. You can try adjusting the sliders on the Advanced tab of Create mesh.

The default setting is Slow - you could try one click from the left, remesh and solve.

From your image it would appear that you are using finite thickness for the metallic parts? This will increase the number of mesh elements and thus the required memory. If the finite thickness is only a fraction of the wavelength, usually, you can remove the finite thickness.

Lastly if there is symmetry in the model you could add one plane of magnetic symmetry on the Y=0 plane, assuming of course your excitation and geometry allows this.

Community-Pasted-Attachment-1632720919990.png

All comments

Mel

There seems to be extremely fine meshing in 4 locations. This may or may not be necessary. You can try adjusting the sliders on the Advanced tab of Create mesh.

The default setting is Slow - you could try one click from the left, remesh and solve.

Lastly if there is symmetry in the model you could add one plane of magnetic symmetry on the Y=0 plane, assuming of course your excitation and geometry allows this.

Community-Pasted-Attachment-1632720919990.png

Gaurav Sobti

Greatly appreciated, Sir!