Production Testing of RF and System-On-a-Chip Devices for Wireless Communications

When referring to pulse power, the power is averaged over the pulse width, ?. The pulse width, ?, is usually taken to be the 50% rise-time/fall-time amplitude points.
The equation for pulse power is give by
| (4.6) | |
Pulse power averages out such things as overshoot and ringing, which is why it is called pulse power and not peak power. Using (4.5) and (4.6), the equation for pulse power of rectangular pulses can be rewritten as
| (4.7) | |
where the duty cycle is the pulse width times the frequency. This can be used to simplify the pulse power measurement to a simple average power measurement that is then divided by the duty cycle. However, care must be taken that the pulse shape is well behaved and understood.