Chapter 10 frequency response In this chapter we will introduce an important frequency is that a network function or parameter reaches a maximum value. In certain simple a networks, this occurs when an impedance or admittance is purely real-a condition known as resonanceChapter 10 Frequency response In this chapter we will introduce an important frequency is that a network function or parameter reaches a maximum value.In certain simple a networks, this occurs when an impedance or admittance is purely real-a condition known as “resonance