81
5. Performance Verification
Bandwidth Performance Verification
shows a close up of the tip wires positioned under the
pinchers.
d
Ideally the probe head should not be angled toward the port 2 side
of the PV fixture, but a slight angle of 5 degrees is acceptable. If
angled too much, the measured BW of the probe will be degraded
due to coupling from the trace to the probe tip.
Figure 56
Close-up of tip wires positioned under pinchers
7
Install the proper file to de-embed the 1250-1749 adapter and the
output side of the N5443A (i.e. the path from the male 2.92 mm
connector to the probe point of the N5443A) from port 1 of the VNA.
a
Create a Touchstone file for the 1250-1749 and N5443A PV fixture
by cutting and pasting the text in
on page 87. Name the file
Adaptor_1250_1749___OutputSideOfFixture_N5443A.s2p
.
b
On the VNA, go to menu “Calibration/Fixturing Selections/2 Port
De-embedding” and select Port 1.
c
Set S2P file selection to the file saved in step a.
d
Check the “Enable De-embedding”.
e
Under “Calibration” menu, select “Fixturing ON/off” to turn on
de-embedding.
8
Trigger VNA to perform a single sweep. a. Press “Trigger” under
Channel Setup, and then the green soft-key for “Single”. Display
should look like
. If it looks noticeably different, the probe tip
wires may not be making contact under the pinchers.
9
Under “Trace/Math/Memory” select “Data->Memory”. This will save
the de-embedded input voltage trace into the memory.
Summary of Contents for InfiniiMax III Series
Page 1: ...Keysight InfiniiMax III Series Probes User s Guide...
Page 4: ...4 Contents...
Page 28: ...28 1 Using InfiniiMax III Series Probes Simplified InfiniiMax III Schematic...
Page 64: ...64 2 InfiniiMax III Probe Heads N5444A InfiniiMax III 2 92 mm 3 5 mm SMA Probe Head...
Page 100: ...100 5 Performance Verification Performance Test Record...
Page 104: ...104 6 Performance Plots N2836A 26 GHz Solder In Head with N2803A...
Page 105: ...105 6 Performance Plots N2836A 26 GHz Solder In Head with N2803A...
Page 107: ...107 6 Performance Plots N2838A N5439A 25 GHz PCB ZIF Tip Head with N2803A...
Page 108: ...108 6 Performance Plots N2838A N5439A 25 GHz PCB ZIF Tip Head with N2803A...
Page 110: ...110 6 Performance Plots N5440A N5439A 28 GHz Ceramic ZIF Tip Head with N2803A...
Page 111: ...111 6 Performance Plots N5440A N5439A 28 GHz Ceramic ZIF Tip Head with N2803A...
Page 113: ...113 6 Performance Plots N5447A N5439A 28 GHz Ceramic High Sensitivity ZIF Tip Head with N2803A...
Page 114: ...114 6 Performance Plots N5447A N5439A 28 GHz Ceramic High Sensitivity ZIF Tip Head with N2803A...
Page 116: ...116 6 Performance Plots N5441A 16 GHz Solder In Head with N2803A...
Page 117: ...117 6 Performance Plots N5441A 16 GHz Solder In Head with N2803A...
Page 119: ...119 6 Performance Plots N5444A 28 GHz SMA 2 92 mm Head with N2803A...
Page 121: ...121 6 Performance Plots N5445A 30 GHz Browser Head 1 mm span with N2803A...
Page 122: ...122 6 Performance Plots N5445A 30 GHz Browser Head 1 mm span with N2803A...