ADVANTEST R3765G Series

R3765/67G Series Network Analyzer Operation Manual
7.5 Calibration
7-52
(2) The signal-flow graphs below show error models
(When the ports are connected in order of PORT1, PORT2 and PORT3).
• PORT1 signal source
• PORT2 signal source
• PORT3 signal source
Signal source PORT1 PORT2 PORT3
Directivity E
d1
E
d2
E
d3
Source matching E
s1
E
s2
E
s3
Load matching E
l21
,E
l31
E
l12
,E
l32
E
l13
,E
l23
Transmission tracking E
t21
,E
t31
E
t12
,E
t32
E
t13
,E
t23
Reflection tracking E
r1
E
r2
E
r3
Isolation E
x21
,E
x31
E
x12
,E
x32
E
x13
,E
x23
*E
l21
=E
l23
E
l32
=E
l31
E
l13
=E
l12