R3765/67G Series Network Analyzer Operation Manual
10.5 Directivity
10-11
10.5 Directivity
Testing procedure
Setup the R3765/67G series as follows.
Figure 10-5 Directivity
Perform the normalize (SHORT) of TEST PORT 1.
(For OPT11, [MEAS] {S11 (PORT 1)})
(a) [MEAS] {S11 REFL FWD} or [MEAS] {REFLECTION}.
(b) Connect the short standard to TEST PORT 1.
(c) [CAL] {NORMALIZE (SHORT)}.
Connect the load standard to TEST PORT 1 and read the value of directivity from trace
data with the marker.
<Check> : The directivity of TEST PORT 1 (in 23°C ± 5°C)
300kHz to 40MHz : -28dB or less
40MHz to 2.6GHz : -30dB or less
2.6GHz to 3.8GHz : -26dB or less
3.8GHz to 8.0GHz : -22dB or less (R3767BG/67CG only)
OPT 12 or OPT 13
300kHz to 40MHz : -28dB or less
40MHz to 2.0GHz : -27dB or less
2.0GHz to 3.8GHz : -22dB or less
• The following Steps thru are only for R3765CG/67CG with OPT 11, OPT
13 or OPT 14 installed.
1
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TEST
PORT1
TEST
PORT3
TEST
PORT2
R3765BG/67BG
R3765CG/67CG
(OPT11/OPT13/OPT14
TEST
PORT4
SHORT
standard
LOAD
standard
2
3
4
5 7
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