Keysight N2800A User Manual page 132

8
SPICE Models
N5440A Ceramic ZIF Tip, N5439A ZIF Probe Head
For matching between the modeled and measured input impedances, refer to
"N5440A/N5439A 28 GHz Ceramic ZIF Tip/Head (with N2803A)"
.subckt N5440A_N5439A_450ohmZIF 1 2
c1 1 10 20f
l1 10 11 1.5n
r1 11 2 180
rp1 1 3 180
lp1 3 4 1.5n
cp1 4 5 24f
cp2 5 6 100n
rp2 6 1 500
rp3 5 1 50k
cm1 2 7 24f
lm1 7 8 1.5n
rm1 8 5 180
cm2 2 9 100n
rm2 9 5 500
rm3 2 5 50k
rom 5 0 180
lom 5 0 30u
.ends
N5447A Ceramic High Sensitivity ZIF Tip, N5439A ZIF Probe Head
For matching between the modeled and measured input impedances, refer to
"N5447A/N5439A 28 GHz Ceramic High-Sensitivity ZIF Tip/Head (with N2803A)"
page 112.
.subckt N5447A_N5439A_200ohmZIF 1 2
c1 1 10 20f
l1 10 11 2.3n
r1 11 2 250
rp1 1 3 1.2k
lp1 3 4 2.3n
cp1 4 5 24f
cp2 5 6 100n
rp2 6 1 250
rp3 5 1 25k
cm1 2 7 24f
lm1 7 8 2.3n
rm1 8 5 1.2k
cm2 2 9 100n
rm2 9 5 250
rm3 2 5 25k
rom 5 0 150
lom 5 0 30u
.ends
132
on page 109.
InfiniiMax III Series Probes User's Guide
on