Networks for peaking frequency response?

[T3sl4co1l]

Anyone know if there's a general (n-pole) topology for peaking, with one port C-loaded, the other R-loaded?

The famous T-coil method applies for both ports C-loaded only, with the R load being incidental (typically bias).  I want a network which peaks the response into the R alone (a wideband RF power amp is an illustrative example).

The only method I'm currently aware of, is series peaking, which stinks (~50% bandwidth gain even with 4 poles in your basic ladder topology).

Bit of an aside, there is one method, a distributed amplifier.  But I mean for a single amp only.

I do have a bib reference this time!  Wideband Amplifiers, Starič and Margan.  Part 2 gives analysis of several useful peaking circuits.  I kind of doubt that these are exhaustive among useful peaking circuits, though?

Tim

[srb1954]

Anyone know if there's a general (n-pole) topology for peaking, with one port C-loaded, the other R-loaded?

The famous T-coil method applies for both ports C-loaded only, with the R load being incidental (typically bias).  I want a network which peaks the response into the R alone (a wideband RF power amp is an illustrative example).

The only method I'm currently aware of, is series peaking, which stinks (~50% bandwidth gain even with 4 poles in your basic ladder topology).

Bit of an aside, there is one method, a distributed amplifier.  But I mean for a single amp only.

I do have a bib reference this time!  Wideband Amplifiers, Starič and Margan.  Part 2 gives analysis of several useful peaking circuits.  I kind of doubt that these are exhaustive among useful peaking circuits, though?

Tim

Have you also looked at the Vertical Amplifier Circuits handbook in the Tektronix Circuit Concepts series?

[T3sl4co1l]

Those are entirely of the both-C-load type.

Tim