7- 3
Operating Concepts
System Operation
System Operation
Network analyzers measure the reflection and transmission characteristics of devices and networks. A
network analyzer test system consists of the following:
•source
• signal-separation devices
• receiver
•display
The analyzer applies a signal that is transmitted through the test device, or reflected from its input, and then
compares it with the incident signal generated by the swept RF source. The signals are then applied to a
receiver for measurement, signal processing, and display.
The vector network analyzer integrates a high resolution synthesized RF source, test set, and a dual channel
three-input receiver to measure and display magnitude, phase, and group delay of transmitted and reflected
power. With Option 010, the analyzer has the additional capability of transforming measured data from the
frequency domain to the time domain. Other options are explained in “Options and Accessories” chapter of
the reference guide. A simplified block diagram of the network analyzer system is shown in
Figure 7-1. A
detailed block diagram of the analyzer is provided in the service guide together with a theory of system
operation.
Figure 7-1 Simplified Block Diagram of the Network Analyzer System
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