Agilent Technologies 4294A, Operating Manual

Page: 343 / 469

Chapter 10 335
Specifications and Supplemental Performance Characteristics
Basic Characteristics
10.
Sp
ec
ifi
ca
tio
ns
and
S
upp
le
men
tal Per
fo
rm
anc
e
C
har
ac
ter
isti
cs
f : frequency in MHz.
VmV : oscillator level in mV.
Impedance Measurement Accuracy at 7-mm Port of the 42942A
Equation 10-2 shows the impedance measurement accuracy [%] at the 7-mm port of the
42942A Terminal Adapter.
Equation 10-2 Impedance Measurement Accuracy [%] at 7-mm Port of 42942A
Where,
[%]
[S]
[W]
Yo, Ep, Zs : See Figure 10-3 on page 340
E E
P
'
Z
S
'
Z
X
---------
Y
O
' Z
X
×
+
è ø
æ ö
100
´
+ =
E
P
' E
PBW
E
POSC
E
P
+ + =
Y
O
' K
BW
Ky
OSC
´
Y
ODC
Y
O
+
( ) ´
=
Z
S
' K
BW
Kz
OSC
´ Z
S
´ =
E
posc
[%] =
at oscillator level
>
500 mV
at oscillator level
>
125 mV,
£
500 mV
0
at oscillator level
£
125 mV
Ky
osc
=
at oscillator level
³
500 mV 1
at oscillator level
<
500 mV
Kz
osc
=
at oscillator level
>
500 mV
at oscillator level
>
250 mV,
£
500 mV
at oscillator level
£
250 mV,
>
125 mV
f
100
---------
V
mV
500
---------- 1
–
è ø
æ ö
´
125
V
mV
---------- 1
–
è ø
æ ö
0.05 E
PBW
+
( ) ´
500
V
mV
----------
2
f
100
---------
+
500
V
mV
----------
250
V
mV
----------