I have found that the capacitance of some capacitors like ceramic capacitors can actually change when a DC bias voltage is applied across them. The voltage need only be a few volts to make significant difference to the capacitance. Capacitors are used in filters and also decoupling capacitors, this means that it can cause change the cut-off frequency and the performance of noise filtering on the power supply rails.

Does this not mean that we should stop using ceramic capacitors of this type, or is there a way to mitigate this problem?