The Keysight E8740A is a signal analysis and generation platform engineered for automotive radar testing across 24 GHz, 77 GHz, and 79 GHz frequency bands. It supports FMCW, CW, OFDM, coded modulation, pulse sequence, and MFSK signal generation with scalable analysis bandwidth from 2.5 GHz to over 5 GHz. The instrument extends to 110 GHz in continuous sweep mode with an X-Series UXA signal analyzer integration, delivering -150 dBm displayed average noise level across its operating range.
Technical Specifications
Frequency Coverage
• Automotive radar bands: 24 GHz, 77 GHz, 79 GHz
• Extended operation: 3 Hz to 26.5 GHz and 60 GHz to 90 GHz
• Continuous sweep capability: up to 110 GHz (with UXA analyzer)
Analysis and Generation Performance
• Analysis bandwidth: 2.5 GHz to > 5 GHz (scalable)
• Displayed average noise level: -150 dBm up to 110 GHz
• Amplitude flatness: ±2 dB typical (DC–10 GHz); +2 dB / -3 dB typical (10–25 GHz)
• Amplitude resolution: 200 µV nominal
• DAC resolution: 8-bit
• AWG sample rate: 13.44 GSa/s to 65 GSa/s
• Sample memory: 1 MSa internal / 16 GSa extended
• Frequency switching: 505 µs standard / 38 ps optional
Signal Generation Types
• FMCW, CW, OFDM, coded modulation, pulse sequence, MFSK, custom OFDM
• Wide-field signals with modulation bandwidths exceeding 4 GHz for reference, interference, clutter, and jamming applications
– Key Features
• Multi-band automotive radar signal support with flexible modulation capabilities
• Millimeter-wave frequency coverage with specific configurations and optional components
• Measurement bandwidth extensible to 5 GHz with correction
• High-speed arbitrary waveform generation up to 65 GSa/s
– Typical Applications
• ADAS and autonomous vehicle radar receiver/transmitter validation
• Multi-band radar signal analysis and synthesis
• Interference and clutter simulation for radar testing
• Physical layer characterization of automotive radar systems
– Compatibility & Integration
Integrates with Keysight PathWave software platform for test sequence creation and physical layer test planning. Compatible with X-Series UXA signal analyzer for extended frequency coverage.
