L
Isolation
E
-
XF
I
I
I
I
I
I
PORT
PORT
1
2
Figure 6-45. Isolation Em
pg662d
Thus there are two sets of error terms, forward and reverse, with each set consisting of six
error terms, as follows:
n
Directivity,
Enr
(forward) and
Ena
(reverse)
n
Isolation,
EXF
and
EXR
w
Source Match,
Esr
and
Esa
w
Load Match,
ELF
and
ELR
n
Transmission Tracking, Err and Era
n
Reflection Tracking, Em and
ERR
The analyzer’s test set can measure both the forward and reverse characteristics of the test
device without you having to manually remove and physically reverse the device. The full
two-port error model
illustrated
in
Figure
6-46 depicts how the analyzer effectively removes
both the forward and reverse error terms for transmission and reflection measurements
Application and Operation Concepts
6-66