UG-1462
User Guide
Rev. 0 | Page 10 of 18
Figure 10 shows the
switch insertion loss (network
analyzer two-port S(2,1) measurement) measurement results that
are de-embedded with respect to the PCB calibration transmission
line losses. The blue trace is the RF2 to RFC switch channel, and
the red trace is the RF1 to RFC switch channel. The dashed traces
are the respective return loss traces. The performance of the
RF2 switch is identical to the RF3 switch, and the performance of
the RF1 switch is identical to the RF4 switch.
0
–3.0
0
–50
–40
–30
–20
–10
–45
–35
–25
–15
–5
–2.5
–2.0
–1.5
–1.0
–0.5
0
2
4
6
8
10
12
14
16
INS
E
RT
IO
N L
O
S
S
(
d
B)
RE
T
U
RN L
O
S
S
(
d
B)
FREQUENCY (GHz)
RF2 TO RFC CHANNEL
RF1 TO RFC CHANNEL
RF2 TO RFC CHANNEL
RF1 TO RFC CHANNEL
1
727
1-
0
09
Figure 10. PCB De-Embedded
Insertion Loss and Return Loss
Performance
Figure 11 shows the
switch off isolation performance
measurement results for two channels. The blue trace is the RF2
to RFC switch channel, and the red trace is the RF1 to RFC switch
channel. The performance of the RF2 switch is identical to the
RF3 switch, and the performance of the RF1 switch is identical to
the RF4 switch.
0
–80
–70
–60
–50
–40
–30
–20
–10
0
10
8
6
4
2
O
F
F
I
S
O
L
AT
IO
N (
d
B)
FREQUENCY (GHz)
RF2 TO RFC CHANNEL
RF1 TO RFC CHANNEL
1
727
1-
0
10
Off Isolation Performance
