IPC-TM-650 EN 2022 试验方法1.pdf - 第482页

Figure 5-1 1 Calibration for Stored Reference Metho d AIRLINE PROBE SPD TDR INSTRUMENT std,0 open PRECISION RF CABLE V check,0 f,std i,std MEASUREMENT ZONE for AIR LINE t 1,TL TIME i,0 IPC-TM-650 Page 14 of 23

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Figure 5-9 Calibration of Incident Step Amplitude
t
1,TL
TIME
i,0
AIRLINE
PROBE
SPD
TDR
INSTRUMENT
std,0
open
PRECISION
RF CABLE
i,std
f,std
MEASUREMENT ZONE
for AIR LINE
Figure 5-10 TDR Measurement of Transmission Line
MEASUREMENT ZONE
for TRANSMISSION LINE UNDER TEST
TRANSMISSION LINE UNDER TEST
AIRLINE
PROBE
PRECISION
RF CABLE
MEASUREMENT ZONE
for AIR LINE
i,std
f,std
TDR
INSTRUMENT
SPD
TIME
i,TL
f,TL
IPC-TM-650
Page 13 of 23
Figure 5-11 Calibration for Stored Reference Method
AIRLINE
PROBE
SPD
TDR
INSTRUMENT
std,0
open
PRECISION
RF CABLE
V
check,0
f,std
i,std
MEASUREMENT ZONE
for AIR LINE
t
1,TL
TIME
i,0
IPC-TM-650
Page 14 of 23
Figure 5-12 TDR Measurement of Transmission Line
PROBE
SPD
TDR
INSTRUMENT
C,ave
PRECISION
RF CABLE
V
check
TRANSMISSION LINE UNDER TEST
MEASUREMENT ZONE
for TRANSMISSION
LINE UNDER TEST
f,TL
i,TL
TIME
r,1
IPC-TM-650
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