Agilent Technologies E8267D PSG - Manual (Page 132)

118 Chapter 3
Basic Digital Operation
Using Waveform Clipping
Figure 3-10 Multiple Channel Summing
The I and Q waveforms combine in the I/Q modulator to create an RF waveform. The magnitude of
the RF envelope is determined by the equation , where the squaring of I and Q always results
in a positive value.
As shown in Figure 3- 11 , simultaneous positive and negative peaks in the I and Q waveforms do not
cancel each other, but combine to create an even greater peak.