Information In This Chapter; Chapter Five At-A-Glance - Keysight N5227A Service Manual

2-port and 4-port pna microwave network analyzer 10 mhz - 67 ghz
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Theory of Operation

Information in This Chapter

Information in This Chapter
This chapter provides a general description of the operating theory of the N5227A 2-port and 4-port PNA
microwave network analyzers.
• Theory of operation is explained to the assembly level only.
• Component-level circuit theory is not provided.
• Simplified block diagrams are included for each functional group. More detailed block diagrams are
located at the end of
IMPORTANT Although simplified block diagrams are included within the description of each functional
group, it is recommended that the more detailed block diagrams, located at the end of
Chapter
4, be available for reference, as you read the information in this chapter.

Chapter Five at-a-Glance

Section Title
Network Analyzer System Operation
Synthesized Source Group Operation
Signal Separation Group Operation
Receiver Group Operation
Digital Processing and Digital
Control Group Operation
Power Supply Group Operation
5-2
Chapter 4, "Troubleshooting."
Summary of Content
A summary of the theory of operation for the analyzer.
A summary of the operation of the major functional
groups of the analyzer.
Operation of the assemblies associated with the source
group.
Operation of the assemblies associated with signal
separation, including the operation of source attenuators
and bias tees.
Operation of the assemblies associated with the receiver
group including the operation of receiver attenuators.
Operation of the assemblies associated with digital
processing and digital control.
Operation of the power supply assembly group.
PNA Series Microwave Network Analyzers
Service Guide N5227-90001
N5227A
Start Page
Page 5-3
Page 5-7
Page 5-20
Page 5-25
Page 5-31
Page 5-36

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