Signal Loading Of The Input Signal; Input Impedance - Rohde & Schwarz R&S Rt-Zs60 Bedienungsanleitung
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®
R&S
RT-ZS60
Fig. 4-7: Step response of the R&S RT-ZS60 with a type 3 connection
4.2
Signal Loading of the Input Signal
The previous section dealt with the transfer function and step response of the
probe. This section describes how the probe influences the input signal.
4.2.1
Input Impedance
The input signal loading caused by the probe is determined by its input impe-
dance Z
. The
figure 4-1
in
Z
consists of the following probe-specific parameters.
in
● Input resistance R
● LF input capacitance C
● RF resistance R
● RF input capacitance C
● Minimum input impedance |Z
User Manual 1418.7342.02 ─ 02
presents an equivalent circuit model.
in
LF
+ R
RF1
RF2
in
|
min
Measurement Principles
Signal Loading of the Input Signal
35
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