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Eliz

DGFM errors, SEP, FEKO 2018

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I want to simulate an array of Vivaldi antennas, which is obviously very resource intensive. I have read that one can use DGFM to solve antenna arrays and that it will help to run the simulation faster, and with less memory requirements. However, I have also read that you cannot use DGFM with regions that use SEP for certain versions of FEKO and this error message is displayed to me when I run CEM validate in CADFEKO. I have updated my FEKO version - it is FEKO version 2018.2.1-343574 . Is this one of the versions that cannot use SEP and DGFM at the same time? If I cannot use DGFM to solve the array what other methods can I use to help lessen the amount of memory and time resources that is required to simulate the array? Is there a way to fix this? How does this FEKO version relate to FEKO 14 (since I read somewhere that in FEKO 14 this problem was fixed)?

 

 

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Hello Eliz

 

Unfortunately you are using a version that will not work to solve your antenna array containing SEP regions with the DGFM. It is strongly recommended to upgrade to the latest version of Feko - the current version is 2019.1.1.

 

DGFM is supported for SEP regions in version 14.0.430 and later, excluding versions 2018.2 and 2018.2.1. The reason for version 2018.2 and its patch being excluded is a regression that got introduced in version 2018.2. It is fixed in Feko 2019. The CEM validate message is wrong (this is a known defect) and should be updated.

 

Kind regards

Madelé

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