194 Keysight EXG and MXG X-Series Signal Generators User’s Guide
Basic Digital Operation for N5172B/82B with Options 653/655/656/657
Clipping a Waveform
Combining the I and Q Waveforms
When the I and Q waveforms combine in the I/Q modulator to create an RF waveform, the
magnitude of the RF envelope is , where the squaring of I and Q always results in a positive
value.
As shown in the following figure, simultaneous positive and negative peaks in the I and Q
waveforms do not cancel each other, but combine to create an even greater peak.