Keysight PNA Series User Manual

Radar cross-section measurements
The PNA Series provides the excellent measurement sensitivity, fast frequency agility
and data acquisition speeds necessary for RCS measurements. Excellent measurement
sensitivity is provided by mixer based downconversion technology; very fast frequency
agility is achieved through the source and receiver being located in the same instru-
ment. The PNA’s user selectable IF bandwidths, ranging from 1 Hz to 40 kHz, let you
optimize the bandwidth and measurement speed tradeoff to meet a particular test
requirement.
High-power pulses are often used in RCS measurements to overcome the high losses
due to low device reection and two-way transmission path loss. For this reason, re-
ceiver gating is often required in RCS measurements to avoid overloading the receiver
during the transmission of the pulsed-RF signal. Figure 8 shows an example of pulse
hardware gating, which could easily be added to a PNA RCS conguration for those ap-
plications requiring pulse hardware gating.
Figure 8. Typical RCS measurement conguration using a PNA Option 201, PNA-X network analyzer.
Figure 9. Typical RCS measurement conguration using a Legacy (E836xC) PNA network
analyzer. PNA-L Option 216, PNA Option 201, or PNA-X can also be used.
Several additional features of the PNA Series are particularly useful in RCS congurations.
– Having the source and receiver integrated into the same instrument, with a choice
of frequency ranges is very cost effective in RCS applications.
– For PNA-X, 100,000 data points are available per measurement; and 20,001 data
points are available per measurement for PNA. This provides extremely long,
alias-free,
– down-range resolution for RCS measurements.
– The PNA has a removable hard drive to comply with data security requirements.
For detailed security information, refer to “Appendix 1” on page 71.
LAN
81110A
Pulse gen
Gating hardware
Chamber
Tx
Rx
LAN
PIN
switch
RF Source
Receiver #1
Receiver #2
PIN
switch
control
E836xC PNA network analyzer
10 | Keysight | Antenna Test – Selection Guide

Keysight PNA Series Specifications

General

Number of Ports	2, 4
Impedance	50 Ω
Output Power Range	-55 dBm to +13 dBm (varies by model)
Dimensions	Varies by model
Weight	Varies by model
Power Requirements	100-240 VAC, 50/60 Hz
Storage Temperature	-40°C to 70°C