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1. Using InfiniiMax III Series Probes
SPICE Models for N2838A and N2836A Probe Heads
SPICE Models for N2838A and N2836A Probe Heads
These are SPICE models for the input impedances of the various InfiniiMax
III probes. Generic SPICE sub-circuit files are listed so they can be copied
and pasted into user’s SPICE simulations.
, “Performance Plots” shows the matching between the
measured input impedance and these modeled input impedances for the
various probe heads.
The following diagram shows the SPICE circuit used for these probe
heads:
• N2838A 25 GHz PC Board ZIF Tip (with N5439A ZIF Probe Head)
• N2836A 26 GHz Solder-In Probe Head
Figure 9
SPICE circuit to use for N2838A and N2836A probe heads
The input impedance is only a function of the probe head; the amplifier
input does not significantly affect the input impedance.
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...