Figure 7: transmission uncertainty, Figure 8: reflection uncertainty – Atec Agilent-N9923A User Manual
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Corrected measurement uncertainty, 1- or 2-port QuickCal,
low port power
Applies to N9923A with option 112, QuickCal with load, IF bandwidth = 300 Hz,
no averaging, 1-port female DUT, or 2-port female-female DUT, data based on low
port power of -40 dBm , 2-port QuickCal requires option 122, typical performance.
Corrected performance
2 MHz to 4 GHz
Corrected performance
>4 GHz to 6 GHz
Directivity
38 dB
38 dB
Source match
33 dB
23 dB
Load match
37 dB
35 dB
Transmission tracking ±0.04 dB
±0.09 dB
Reflection tracking
±0.06 dB
±0.06 dB
0.1
1
10
100
-40
-30
-20
-10
0
10
20
30
40
Uncertainty (deg)
Device Transmission Magnitude, |S21|, (dB)
Transmission Phase Uncertainty (S11=S22=0)
2MHz to 4 GHz
4 GHz to 6 GHz
Figure 7: Transmission uncertainty
1
10
100
1000
-40
-35
-30
-25
-20
-15
-10
-5
0
Uncertainty (deg)
Device Reflection Magnitude, |S11|, (dB)
Reflection Phase Uncertainty (S21=S12=0)
2MHz to 4 GHz
4 GHz to 6 GHz
Figure 8: Reflection uncertainty
0.01
0.1
1
10
-40
-30
-20
-10
0
10
20
30
40
Un
c
e
rt
a
in
ty
d
B
)
Device Transmission Magnitude, |S21|, (dB)
Transmission Magnitude Uncertainty (S11=S22=0)
2MHz to 4 GHz
4 GHz to 6 GHz
0.1
1
10
-40
-35
-30
-25
-20
-15
-10
-5
0
Uncertainty (dB)
Device Reflection Magnitude, |S11|, (dB)
Reflection Magnitude Uncertainty (S21=S12=0)
2MHz to 4 GHz
4 GHz to 6 GHz