Rror Term Descriptions; Directivity ( Df And Dr); Description; Source Match ( Sf And Sr) - HP 8753D Option 011 Service Manual

Uncorrected System Performance of HP 8753 (50 )
Directivity
Source Match
Load Match
e ection Tracking
Transmission Tracking
Crosstalk
Typical
15 dB, 30 kHz to 50 kHz
10 dB, 30 kHz to 50 kHz

rror Term Descriptions

The error term descriptions in this section include the following information:
signi cance of each error term
typical results following a full 2-port error-correction
guidelines to interpret each error term
The same description applies to both the forward (F) and reverse (R) terms.
Directivity (EDF and EDR)
escription
Directivity is a measure of any detected power that is re ected when a load is attached to the
test port. These are the uncorrected forward and reverse directivity error terms of the system.
The directivity error of the test port is determined by measuring the re ection (S11, S22) of
the load during the error-correction procedure.
Significant System Components
load used in the error-correction (calibration)
test port connectors
test port cables
RAFT
3/21/106 15:14
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Table 11-2.
with 7 mm Test Ports
30 kHz to 300 kHz 300 kHz to 1.3 GHz
20 dB 35 dB
18 dB 16 dB
20 dB 18 dB
2.0 dB
2.0 dB
100 dB 100 dB
requency Range
1.3 GHz to 3 GHz
30 dB
16 dB
16 dB
1.5 dB 1.5 dB
1.5 dB 1.5 dB
100 dB
3 GHz to 6 GHz
25 dB
14 dB
14 dB
2.5 dB
2.5 dB
90 dB
Error Terms 11-7