System Description; Synthesized Source - Agilent Technologies ENA Series User Manual

General Principles of Operation

System Description

System Description
A network analyzer supplies a sweep signal to a DUT, measures its transmission and
reflection, and displays the results as ratios against the input signal from the signal source.
The E5070A/E5071A network analyzer consists of the circuit modules shown in Figure
E-1.
Figure E-1 System Diagram for the E5070A/E5071A Network Analyzer

Synthesized Source

The synthesized source generates an RF sweep signal in the following frequency range.
•
•
The signal source is phase-locked to a highly reliable quartz crystal oscillator to maintain a
high level of accuracy in its frequency as well as to achieve precise phase measurements.
The level of RF output power is controlled within the range of -15 dBm ~ 0 dBm by the
internal ALC (automatic leveling control) circuit. The E5070A/E5071A with option 214,
314, or 414 comes with a source-stepping attenuator which allows the user to set the power
level in the range of -50 dBm ~ 0 dBm.
454
E5070A: 300 kHz ~ 3 GHz
E5071A: 300 kHz ~ 8.5 GHz
Appendix E