Specifications

11
Page 21
安捷倫科技高頻元件量測研討會
Feb.23, 2006
Peeling - Voltage Bounce Diagram
Γ
R =
= 1.0Γ
S
= - 0.2
240 mV
-48 mV
(192 –1.92)mV
240 mV
201.6 mV
383 mV
t=0
t=2
t=4
-Γ
l
= - 0.2
192 mV
192 mV
75Ω
50Ω
Open
Keeps on approaching steady state of 400 mV
9.6 mV
Raw Voltage
Peeled Voltage
50Ω
source
Page 22
安捷倫科技高頻元件量測研討會
Feb.23, 2006
Corrected Z Profile into a 75 Ω Cable
Peeled Trace Impedance
Notice that multiple
reflections have been
removed
Peeling assumes
Loss-less device.
Loss, Resistance [R],
degrade accuracy of
peeling.
Initial Z mismatch is
the most accurate.
Benefit is enhanced
with TDR calibration