Hello ranshh,
There are some linear electrical elements you can use to create filters out of circuits like this, but because they are linear their properties can't be voltage dependent. I think the closest element to this type of circuit would be the "Voltage dependent low pass (LP) RC filter" element, which has a bandwidth that depends on the input voltage. This element could have a response similar to this circuit, if you can calculate the bandwidth as a function of the applied voltage for this circuit.
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