10 Mhz To 19 Ghz Operation; Dc Power - Keysight Technologies N5290/1A PNA Series Service Manual

Theory of Operation
Theory of Operation
Figure 5-1 Frequency Bands with LFE
The incident signal output power is leveled by an internal automatic leveling
control (ALC) circuit. The maximum output power level of the network analyzer
at the test ports can be found in the Data Sheet and Technical Specifications
documents, available online at:
http://literature.cdn.keysight.com/litweb/pdf/N5221-90003.pdf
http://literature.cdn.keysight.com/litweb/pdf/N5221-90004.pdf.

10 MHz to 19 GHz Operation

The RF signal from the PNA SOURCE OUT of each of the four ports is 10 MHz
to 19 GHz. And, is input into the Source In connector of the N5292A test set.
The RF signal is then input into the corresponding millimeter head for each
port and switched into a series of frequency multipliers.
The signal received at the test port of the combiner (either transmitted from
another millimeter head or reflected from a device under test) is routed to the
RCVR connector via the combiner and coupled arm of the coupler. This output
goes to the RCVR IN connector on th e appropriate port of the PNA.

DC Power

The power supply generates the following supply voltages: +15V, +12C, +9V,
+5.2V, +5.1D, +3.5D, –7V.
Each supply voltage will have its own LC filter, the size of the inductor used
depends on how much current is drawn from a supply. Each supply will have its
ow fuse situated in a socket for easy replacement when needed. All fuses from
F1 to F9 are rated at 3.5A, except F6, which is rated at 5A for the +3.5V supply.
5-4
1. For frequency ranges and maximum output power levels, refer to the section "Test
Port Output" in the Data Sheet and Technical Specifications documents (see
hyperlinks above).
Keysight N5290/1A Service Guide
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