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Passive S-parameters vs Gamma

Passive S-parameters vs Gamma. Quick instructions on Passive S-parameters. in CADFEKO Define ports Don’t add voltage sources (slide#4) Request S-parameter calculation (slide#5) In PostFEKO Check results with “S-parameter”, NOT “source data” (slide#6).

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Passive S-parameters vs Gamma

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  1. Passive S-parameters vs Gamma

  2. Quick instructions on Passive S-parameters • in CADFEKO • Define ports • Don’t add voltage sources (slide#4) • Request S-parameter calculation (slide#5) • In PostFEKO • Check results with “S-parameter”, NOT “source data” (slide#6)

  3. array_1freq_passive_S11.cfx - S11 Requested Delete all voltage sources & Farfield

  4. array_1freq_passive_S11.cfx - S11 Requested • S-parameter with all ports and desired impedance (page 6-52 in user manual) • For complete S-parameters, all ports should be active • Only port1 is active if only S11, S21, S31, S41, … are required

  5. array_1freq_passive_S11.cfx - S11 Requested Check results with “S-parameter”, NOT “source data”

  6. Quick instructions on Gamma • in CADFEKO • Define ports • Add voltage sources • Don’t request S-parameter calculation • In PostFEKO • Check results with “source data”, NOT “S-parameter” (slide#8)

  7. array_1freq_gamma.cfx Check results with “source data” and correct reference impedance

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