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Derived Parameters

Some parameters are automatically computed from others when not directly provided. This reduces data entry.

OIP3 from IIP3 and gain​

OIP3=IIP3+Gain\text{OIP3} = \text{IIP3} + \text{Gain}

If you enter IIP3 and Gain, the tool derives OIP3 automatically. This is marked with Derived source.

Output P1dB from input P1dB and gain​

P1dB,out=P1dB,in+(Gain - 1)P_{1\text{dB,out}} = P_{1\text{dB,in}} + \text{(Gain - 1)}

If you enter Input P1dB and Gain, Output P1dB is derived.

Priority when both are set​

If you enter both the input and output version of a parameter (e.g., both IIP3 and OIP3), the manually entered value takes priority and no derivation occurs. The tool uses whatever value is set more directly.

Derived vs. computed​

  • Derived parameters are block-level relationships (OIP3 from IIP3). They are computed per block.
  • Computed values are cascade-level outputs (cascaded NF, system OIP3). They are computed from the full chain analysis.

Derived parameters feed into the cascade computation — they are an intermediate step, not an output.