Viewing the Results

View and post-process the results in POSTFEKO.

The resource requirements (time and memory) for the MLFMM solution are notably smaller than for the full MoM solution. The resource requirements for this example is reduced by using the CFIE formulation on the closed PEC structure of the helicopter. The CFIE required 30% less memory resources and 50% less simulation time for this example when comparing with the default EFIE solution. Some solution times from the .out file are given below. Note that times are dependent on the hardware.

        SUMMARY OF REQUIRED TIMES IN SECONDS
CPU-time runtime
Reading and constructing the geometry 0.710 0.732
Checking the geometry 0.400 0.399
Calcul. of the MLFMM transfer function 10.690 10.783
Fourier transform of MLFMM basis funct. 70.670 71.015
Calcul. of matrix elements 4254.970 4282.781
Calcul. of right-hand side vector 0.010 0.020
Preconditioning system of linear eqns. 48.610 48.881
Solution of the system of linear eqns. 453.320 456.073
------------ ------------
total times: 4847.260 4878.584
(total times in hours: 1.346 1.355)
Peak memory usage during the whole solution: 365.509 MByte
  1. For the antennas mounted on the helicopter:
    1. View the coupling between the antennas as a function of frequency on a Cartesian graph.


    Figure 1. View the coupling between the antennas as a function of frequency on a Cartesian graph.
  2. View the reflection coefficients of the antennas as a function of frequency on a Cartesian graph.


    Figure 2. View the reflection coefficients of the antennas as a function of frequency on a Cartesian graph.