Atec Anritsu-MS4640B - Manual (Page 25)

VectorStar™ MS4640B Series MS4645B 50 GHz / MS4647B 70 GHz VNA System Performance
MS4640B Series TDS PN: 11410-00611 Rev. A 25
MS4645B/MS4647B Measurement Uncertainties (Reflection)
The graphs give measurement uncertainties after the above calibration. The errors are a worst-case contribution of residual directivity, load and
source match, frequency response and isolation, network analyzer dynamic accuracy, and connector repeatability. 10 Hz IF Bandwidth is used. For
transmission uncertainties, it is assumed that S
11
= S
22
= 0. For reflection uncertainties, it is assumed that S
21
= S
12
= 0. All calibrations and
measurements were performed at 0 dBm or default port power, whichever is less. For other conditions, please use our free Exact Uncertainty
Calculator software, available for download from the Anritsu web site at www.anritsu.com.
Reflection Magnitude Uncertainty (1 of 2)
MS4647B with a 12-term Calibration using the 36585V AutoCal
0.1
1
10
-40 -35 -30 -25 -20 -15 -10 -5 0
Device Reflection (dB)
Uncertainty (dB)
70 - 300 kHz
0.3 - 10 MHz
10 - 200 MHz
0.2 - 2.5 GHz
2.5 - 20 GHz
Reflection Magnitude Uncertainty (2 of 2)
MS4647B with a 12-term Calibration using the 36585V AutoCal
0.1
1
10
-40 -35 -30 -25 -20 -15 -10 -5 0
Device Reflection (dB)
Uncertainty (dB)
20 - 40 GHz
40 - 65 GHz
65 - 67 GHz
67 - 70 GHz
Reflection Phase Uncertainty (1 of 2)
MS4647B with a 12-term Calibration using the 36585V AutoCal
0.1
1
10
100
-40 -35 -30 -25 -20 -15 -10 -5 0
Device Reflection (dB)
Uncertainty (degrees)
70 - 300 kHz
0.3 - 10 MHz
10 - 200 MHz
0.2 - 2.5 GHz
2.5 - 20 GHz
Reflection Phase Uncertainty (2 of 2)
MS4647B with a 12-term Calibration using the 36585V AutoCal
0.1
1
10
100
-40 -35 -30 -25 -20 -15 -10 -5 0
Device Reflection (dB)
Uncertainty (degrees)
20 - 40 GHz
40 - 65 GHz
65 - 67 GHz
67 - 70 GHz