Z2098B UXG Threat Simulator Calibration System

Z2098B-171-2V4 / Z2098B-171-4V4:  20/40 GHz RF Multi-source Rack with N5193A Agile LO and 4x N5194A Vector Signal Sources

Z2098B-171-2V8 / Z2098B-171-4V8:  20/40 GHz RF Multi-source Rack with 2x N5193A Agile LO and 8x N5194A Vector Signal Sources

Z2098B-171-2VC / Z2098B-171-4VC:  20/40 GHz RF Multi-source Rack with 2x N5193A Agile LO and 12x N5194A Vector Signal Sources

Z2098B-171-2VG / Z2098B-171-4VG:  20/40 GHz RF Multi-source Rack with 2x N5193A Agile LO and 16x N5194A Vector Signal Sources

System Description

Keysight's threat simulator source system is a fully integrated system. A single rack provides  1 static channel or 1-or-2 reconfigurable channels x 4/8/12 or 16 ports (depending on model). Addition of a second identical rack can expand the system to 2 or 4 channels by the same number of ports. All sources are aligned in amplitude, phase and time using an appropriate companion Z2098B-172 series calibration system. 

Definitions

Channels

• A channel is a set of coherent RF signals that perform an AoA group 

• Each channel must be a part of the same MBS set   

• A single channel can emulate multiple time multiplexed emitters/beams as long as there are no  pulse collisions

• Multiple channels can be combined to accurately simulate pulse collisions 

Ports

The number of RF signals in an AoA group.  The number of Source ports should at least equal the number of SUT ports for an AoA group.

Simulation Capability

The Keysight threat simulator provides complete measurement capability for:

• Best in class RF Vector sources

• Thermal stabilization to reduce phase and amplitude variation due to environmental changes

• Each source is capable of simulating multiple emitters

• Creation of overlapping pulses is supported using multiple channels

Mean Time To Repair (MTTR)

The use of Commercial Off The Shelf (COTS) equipment dramatically reduces the MTTR.  Typical MTTR for a single source failure is 30 minutes plus the time required to re-calibrate the system.

System Software

The threat simulator source system comes with the Thermal Control Utility (compatible with Windows 10 Pro, 64 bit™ operating system) 

V-UXG Source Capabilities

• 512 M-samples internal memory per source (upgradable to 4G/6G-samples per source)

• 200 MHz narrowband mode (upgradable to 1.6 GHz wideband mode)

• Spectral purity (low harmonics) (see URL for data sheet below)

• Low Broadband noise (see URL for data sheet below)

• Very low absolute phase noise for both sources (see URL for data sheet below)

• Multiple user configurable markers and external triggers for synchronization with external events

• Source control using PDWs streamed into system via 10 Gb/s optical LAN

• Individual sources in system are fed via 1000BaseT LAN

• Time and Phase synchronization between N5194As

CalPod/Coupler Module In-Situ Calibration and Verification Concept

CalPods provide a way to quickly and easily refresh a network analyzer calibration, at the push of a button and without removing the SUT or re-connecting standards. This capability is used to enhance the accuracy of the source calibration.

The VNA is used to monitor the coupled source signal close to the SUT. Using CalPods, the VNA calibration can be refreshed as needed prior to a source rack amplitude and phase calibration to provide the best possible performance.

With the CalPods in place near the SUT inputs, the entire source calibration can be calibrated or verified while the SUT remains attached to the source.

Support to initialize the CalPods and characterize the couplers is provided by the System Level Calibration (SLC) software included with the Z2098B-186 calibration rack.

Calibration connections to the SUT