AR 10008569, Operating And Service Manual, Page: 29 / 38

5. PULSED RF POWER
5.1 PULSED RF POWER OPERATION
Although this manual discusses power heads used with average responding power meters, for rectangular
pulsed RF signals, pulse power can be calculated from average power if the duty cycle of the reoccurring
pulse is known. The duty cycle can be found by dividing the pulse width (T) by the period of the repetition
frequency or by multiplying the pulse width times the repetition frequency as shown in Figure 5-1.
Figure 5-1. Pulsed RF Operation
This technique is valid for the entire dynamic range of thermocouple head and allows very high pulse powers
to be measure. For diode heads, this technique is valid only within the square-law region of the diodes.
Rev C 15