active inductor using ADS

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rafal raed

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How can I plot the frequency relationship with both the quality factor (Q) and the inductance (L) for the active inductor circuit shown in the attached image using the Advanced Design System (ADS) software?
 

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The active inductor derives a time constant from an RC relationship somewhere in the circuit. The circuit then mimics an LR relationship through a given load R. The inductor value is implied by imaginary LR action. The L value is the value that would generate the same plot of voltage and time, at the current level which is available.

The general rule is that Q is reduced by resistances. Q is maximum by letting the 'purity' of the reactive component (capacitor or Inductor) comes through. Lacking a real inductor, Q depends (as a general rule) on the ratio of C to R.
 

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