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Found 5 results

  1. Hi Can you please help in plotting modal weighing coefficients (MWC) for CMA in FEKO
  2. Hello, I would like to know the meaning of this warning and whether it will affect the accuracy of the results WARNING 37630: The eigenmodes calculated for CMA are not all orthogonal See also message in the output file Myantena.out thank you, best regards!
  3. Hi, Using characteristic mode configuration, one can obtain eigenvalues, modal significance, etc. I would like to know if the corresponding eigenvector values can be exported and read. Thanks.
  4. Dear all, Does any know how FEKO consider substrate layer and ground plane of microstrip patch antenna in CMA method? and what is the effects of substrate and ground plane on performance of the conducting surface? Is not the methods for conducting surfaces? how consider substrate layer and ground plane? yours sincerely.
  5. Hello, I am trying to understand the results of the CMA of a meandered monopole on a ground plane. The modal significance plot shows two dominant modes (mode 1 and 4). The curve looks smooth and consistent so I expect no mode tracking error here. However, when I look at the far field patterns of the modes and cycle through the frequencies (see below) I noticed that the patterns change very drastically. Mode 1 seems to be the lambda/2 dipole mode at 850 MHz (doughnut pattern) but it changes very quickly above 1.1 GHz. Mode 4 starts as a double-doughnut (similar to 2xlambda dipole) but changes into the single doughnut shape at 1.2 GHz. The total radiation pattern obtained through "Standard configuration" changes only very slightly. So my question is how to interpret the quickly changing far field patterns. I know that FEKO is tracking the modes according to current densitiy correlation. But shouldn't there be some consistency of the far field patterns, too? Is there a tracking error? Or is this the expected characteristic? I am just starting out with CMA. Thanks, Christian meandered_monopole.cfx
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