Gating Effects In A Frequency Domain Example Measurement - Agilent Technologies 8719D User Manual

Gate
Gate Span Minimum
Normal
Wide
Maximum
The passband ripple and sidelobe levels are descriptive of the gate shape. The cutoff time is the
time between the stop time (-6 dB on the filter skirt) and the peak of the first sidelobe, and
is equal on the left and right side skirts of the filter. Because the minimrm-~ gate span has no
passband, it is just twice the cutoff time.
13. To see the effect of the gating in the frequency domain, press:
This places the gated response in memory. F'igure 2-61 shows the effect of removing the RF
leakage and the triple travel signal path using gating. By transforming back to the frequency
domain, we see that this design change would yield better out-of-band rejection.

Gating Effects in a Frequency Domain Example Measurement

Levels
fO.l dB
fO.l dB -68 clF3
fO.l dB -57 dB
-70 dB
Figure 2-61.