Signal generator LSX2091B

microwaveRFsingle-channel

Overview
The LSX2091B is a 20 GHz single-channel benchtop member of the Lucid‑X family — a modular microwave signal generator platform available in multiple form factors (Desktop, PXIe module, Benchtop, Rackmount, Portable). Engineered for low phase noise and flexible modulation, the LSX2091B addresses applications from local oscillators and IMD testing to DAC/ADC clocking and radar simulation.

Key Features

• Frequency capability: family coverage up to 40 GHz; LSX2091B output to 20 GHz
• Phase noise examples: -133 dBc/Hz @ 1 GHz (10 kHz offset)
• Fast frequency switching: down to 10 μs (model/option dependent)
• Modulation: AM, FM, PM, Sweep and Pulse; pattern modulation available
• Pulse performance: on/off ratio ≈70 dB; rise/fall times <15 ns
• Interfaces: LAN, USB, SPI; SCPI / VISA remote control; virtual front panel

Signal Integrity and Purity
The Lucid‑X architecture delivers very low phase noise and high spectral purity suitable for demanding RF measurements. Representative phase noise at 10 kHz offset: -148 dBc/Hz @ 100 MHz, -133 dBc/Hz @ 1 GHz, -114 dBc/Hz @ 10 GHz. Harmonic levels are typically around -50 dBc; non-harmonics typically near -90 dBc.

Fast Frequency Switching
The platform supports fast switching options: FS (≈100 μs) and UFS (≈10 μs on supported models). These modes minimize dead time in automated test sequences and enable realistic simulation of frequency-hopping environments used in radar, EW and communications testing.

Analog and Pulse Modulation
Built-in AM, FM, PM and Sweep modulation. FM: deviations up to ±10 MHz and rates to 1 MHz. AM: linear depth up to 90% and rates to 100 kHz. PM: up to 360° peak deviation. Pulse modulation supports high extinction and fast edges for pulsed measurements and radar waveform emulation.

Control and Programming
Supports standard SCPI and VISA architectures for remote control over LAN and USB. Common integration examples include Python, MATLAB, C#/C++ and LabVIEW. The included virtual front panel provides graphical local or network control and simplifies automated test integration.

Ordering Information

• LSX2091B | 20 GHz Single Channel Microwave Benchtop Signal Generator
• MOD | Modulation package (AM, FM, PM) — Models: X / R / B / D / P
• LP | Low power option -70 dBm (included for B / R / X) — Models: D / P
• ELP1 / ELP2 | Extended low power ranges — Models: B / R
• EPR1 / EPR2 | Extended power ranges -130 dBm to +27 dBm — Models: B / R
• PLS | Pulse modulation — Models: X / R / B / D / P
• PAT | Pattern modulation — Models: X / R / B / D / P
• FS | Fast switching 100 μs — Models: X / R / B / D
• UFS | Ultra-fast switching 10 μs — Models: B / R
• BAT / BAT2 | Replaceable batteries (39 Wh / 98 Wh) — Models: P
• CHA | External charger — Models: P
• LAN | USB Ethernet adapter — Models: P
• W-RACK | Rack-mount kit — Models: B / R
• WE | 1-year warranty extension (standard warranty 3 years) — Models: X / R / B / D / P

Technical specifications

• Frequency range: Lucid‑X family up to 40 GHz; LSX2091B to 20 GHz
• Form factors: Desktop, PXIe module, Benchtop, Rackmount, Portable
• Phase noise examples (10 kHz offset): -148 dBc/Hz @ 100 MHz; -133 dBc/Hz @ 1 GHz; -114 dBc/Hz @ 10 GHz
• Harmonics: typically -50 dBc; non-harmonics typically -90 dBc
• Frequency switching: FS ≈100 μs; UFS ≈10 μs (option/model dependent)
• Modulation: AM, FM (± up to 10 MHz; rates to 1 MHz), PM (up to 360°), Sweep, Pulse (on/off ratio ≈70 dB; rise/fall <15 ns)
• Interfaces & control: LAN, USB, SPI; SCPI / VISA; virtual front panel
• Power and range options: LP, ELP1/ELP2, EPR1/EPR2
• Battery/portability options for portable models: BAT, BAT2, CHA
• Typical applications: local oscillators, intermodulation testing, DAC/ADC clocking, radar STALO, EW, quantum experiments, beam‑forming and multi‑channel coherent systems