Linearizing scheme for baseband filter with active feedback

A method for linearizing a baseband filter, comprising:

• receiving a first current signal via a first conducting module;
• receiving a second current signal via a converting module,
• generating, via the converting module, a voltage signal based on the second current signal and applying the voltage signal to the first conducting module, wherein an amount of the second current signal received by the converting module is based on an amount of the first current signal flowing through the first conducting module;
• and
• controlling, via a second conducting module, an output current signal based on the voltage signal, wherein the output current signal is controlled to be a linear replica of the first current signal for in-band frequencies.

An apparatus for linearizing a baseband filter, comprising:

• first conducting means for receiving a first current signal;
• converting means for receiving a second current signal, generating a voltage signal based on the second current signal, and applying the voltage signal to the first conducting means, wherein an amount of the second current signal received by the converting means is based on an amount of the first current signal flowing through the first conducting means;
• and
• second conducting means for controlling an output current signal based on the voltage signal, wherein the output current signal is controlled to be a linear replica of the first current signal for in-band frequencies.