R&S FSH-Z2
Performance Test
1145.5767.02 1.3
E-2
Checking the Return Loss of the TEST Port
Test principle:
Measure the returnloss of the TEST port of the DUT using a Standing
Wave Ratio Bridge
Test equipment:
- Spectrum Analyzer (refer to section "Measurement Equipment and
Accessories", item 1)
-
SWR bridge (refer to section "Measurement Equipment and
Accessories", item 2)
- Short circuit termination (refer to section "Measurement Equipment and
Accessories", item 3)
- Precision Adapter (refer to section "Measurement Equipment and
Accessories", item 5)
- Two 50 Ohm terminations N-female (refer to section "Measurement
Equipment and Accessories", item 6)
- Adapter (refer to section "Measurement Equipment and Accessories",
item 7)
- Cable (refer to section "Measurement Equipment and Accessories",
item 8)
Test setup:
¾
Connect TG output of the spect. Analyzer (item1) to RF input of SWR
Bridge (item 2) using adapter (item 7)
¾
Connect output of the SWR Bridge (item 2) to the RF input of the
spect. analyzer using cable (item 8).
¾
Connect the Short Circuit termination (item 3) onto the TEST Port of
the SWR Bridge (item 2).
Spectrum Analyzer settings:
-
[ PRESET]
-
[ FREQ ]
- [ START FREQ : 10 MHz ]
- [ STOP FREQ : 3 GHz ]
- [
BW
: MANUAL VIDEO BW : 3 kHz ]
-
[ MEAS
: TRACKING GEN : MEASURE ]
- [ TRANSM CAL : CONTINUE ]
Measurment:
¾
Connect the two 50 Ohm terminations (item 6) to the ports "GEN
OUTPUT" and "RF INPUT" of the R&S FSH-Z2
¾
Remove Short Circuit termination (item 3) from TEST port of the SWR
Bridge (item 2).
¾
Connect TEST port of the DUT with the TEST port of the SWR Bridge
(item 2) using an precision adapter (item 5)
¾
The curve shows the return loss of the DUT.
