Computing quality factors Q

The quality factor Q is defined as

$$Q = \frac{\omega W}{P}$$ (3.3)

where

• $\omega$ is the circular resonant frequency,
• $W$ is the total stored energy,
• $P$ is the total power loss due to currents in lossy materials.

We know already from the previous pages how to compute the stored energy. What we need now in addition is the computation of the power losses.