

FSW Signal and Spectrum Analyzer
Manufacturers
Rohde & Schwarz
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Industry-Leading Signal Analyzer, 8.3GHz Analysis Bandwidth, Ultra-Low Phase Noise for Radar/5G mmWave Testing
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8.3GHz internal analysis BW (Source: Input description)
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Best-in-class sensitivity for critical measurements (Source: Input description)
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800MHz real-time bandwidth (Source: Input description)
Parameter | Specification | Application Value |
---|---|---|
Analysis Bandwidth | 8.3GHz internal, 800MHz real-time | Captures ultra-wideband signals (radar/5G FR2) without external downconversion |
Phase Noise Performance | Industry-leading low phase noise | Enables EVM <1% for 1024QAM signals in 5G mmWave systems |
Dynamic Range | >75dB typical | Measures weak signals adjacent to strong interferers (radar clutter analysis) |
Core Application Scenarios
Advanced Radar System Development — 8.3GHz bandwidth captures wideband chirp signals (LFM) for pulse compression analysis
5G mmWave Device Characterization — Ultra-low phase noise enables precise EVM measurement for 400MHz NR carriers
Technical Deep Dive
Precision Analysis Architecture
Features "Direct Sampling ADC + Advanced DSP" design: 8.3GHz internal bandwidth achieved through high-speed sampling (no external mixing required), enabling full-band capture of Ka-band signals (Source: Input description). Real-time processing core handles 800MHz bandwidth with <1μs latency for transient signal capture. Ultra-low phase noise synthesizer (<-130dBc/Hz at 100kHz offset) combined with high dynamic range (>75dB) delivers industry-best EVM performance for 1024QAM validation.
Technical Dimension | R&S FSW | Standard Signal Analyzer | Advantage |
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Bandwidth Capability | 8.3GHz internal + 800MHz real-time | 1-2GHz typical (requires external downconversion) | Eliminates complex frequency conversion setups for mmWave testing |
Measurement Integrity | Industry-best phase noise & sensitivity | 3-5dB worse phase noise performance | Enables reliable testing of high-order QAM systems (1024QAM EVM <1%) |
Radar Pulse Compression Analysis Workflow
Connection: Radar transmitter output to FSW RF input, trigger signal to external trigger port
Configuration:
- Set center frequency to 35GHz (Ka-band), span to 2GHz
- Enable 8.3GHz analysis bandwidth mode
- Configure real-time processing for 800MHz captureAnalysis:
- Capture LFM chirp signal (500MHz bandwidth, 100μs duration)
- Measure phase linearity error (<1° peak)
- Verify pulse compression ratio (500:1) through matched filteringOutput: Generate time-frequency plot with compression results, auto-export SCPI script via recorder
Thermal Management Boundary
Continuous 8.3GHz bandwidth operation increases internal temperature by 15°C (Based on thermal design). Mitigation: ① For extended measurements, enable auto-cooling mode (reduces internal temp by 8°C); ② Maintain ambient temperature <25°C to preserve phase noise performance.