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Manual Port Synthesis/Characteristic Mode Port Synthesis: FEKO Plate Example. FEKO Project plate_32bit. Frequency: 600MHz – 800MHz with 50MHz spacing. Input file “MANUAL_SYNTHESIS_INPUT.txt” or “CMPS_INPUT.txt”. project .mat (without the extension) . Use existing Y-matrix. Number of ports.

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slide1

Manual Port Synthesis/Characteristic Mode Port Synthesis: FEKO Plate Example

FEKO Project plate_32bit

  • Frequency: 600MHz – 800MHz with 50MHz spacing
  • Input file “MANUAL_SYNTHESIS_INPUT.txt” or “CMPS_INPUT.txt”
  • project.mat (without the extension)
  • Use existing Y-matrix
  • Number of ports
  • Port global index numbers (from CharM GUI)
  • Port voltages (manual excitation) or CM coefficients (CM port synthesis)
  • Need to run CharM CM solver BEFORE MS/CMPS

Port 3

Port 2

Port 4

Port 1

slide2

Manual Synthesis (MS)/CMPS: Input/Output

Project directory before running Manual Port Synthesis.exe

CM computation parameters (e.g. matrix size, number of frequencies, etc) from the CharM CM solver

MS/CMPS executable

MS/CMPS input file

project.mat

Project directory after running Manual Port Synthesis.exe

  • MS/CMPS output files:
  • CM expansion, input impedance, Q, etc. (MS_computation_parameters_project.txt)
  • Surface current due to manual voltage excitation (MS_full_currents_project.txt)
  • Manual port voltages (MS_voltages_project.txt)
  • Y-matrix binary file (project.ymat)

Need AEM to convert MS_full_currents_project.txt into *.str and *.ffe files

slide3

MS/CMPS: Computation Parameters

  • MS/CMPS executables computes the CM expansion, power radiated, Q-factor, and active input impedances
  • Plots of these quantities can be put in CharM

Characteristic Mode coefficients of the surface current

Power radiated by the surface current

Q-factor of surface current