A note on pole, frequency, and Q sensitivity

The variation of frequency and Q, as well as the sensitivity of these two quantities to changes in network elements, are closely and simply related to the variation and sensitivity of the corresponding pole. Since network analysis is often more convenient in terms of the complex pole quantities, while laboratory evaluations are carried out more easily in terms of the measurable frequency and Q quantities, the simple relationships discussed here have been found very useful when comparing experimental results with theoretical predictions.