A Wideband Small Cancellation Circuit Enabling Control of Amplitude-Frequency Characteristics by Using Two Variable Resistors

We propose a wideband small cancellation circuit enabling control of amplitude-frequency characteristics by using two variable resistors. First, the formulation of the proposed circuit is described. Next, we show that by appropriately designing the variable resistor parameters, it is possible to form amplitude-frequency characteristics of concave, convex, and flat shapes. We also show that absolute amplitude values can be controlled at a design frequency.