Product Description
R&S
®
RT-ZF20
9
User Manual 1800.0040.02 ─ 02
1.4.2
Operating Principle
The fixture generates a continuous pulse sequence in the small loop and large
loop sections. The pulses in both sections alternate with one another. The time
delay between the pulses is around 35
ms and the pulse width is around 10
μ
s.
, the falling edges are much steeper than the rising edges
in both sections. The edges in the small loop section are much steeper than the
edges in the large loop section.
Pulse of
small loop
Pulse of
large loop
20 ms
35 ms
35 ms
Time
Voltage/
Current
10 us
2.5 V/
240 mA
4.5 V/
900 mA
290 ns
40 ns
Pulse of
small loop
80 ns
4 ns
10 us
Pulse of
large loop
Rise time
Rise time
Fall time
Fall time
Fig. 1-2: Timing and voltage/current swing of pulses of both loops
The
also shows the voltage and current swings of both sections. The
large loop current swing is the sum of multiple windings integrated in the printed
circuit board. The different transit times, voltage and current swings allow to
deskew a wide variety of probes independently of their bandwidths and sensitivi-
ties.
Description of the Power Deskew Fixture
