ESW EMI Test Receiver
Manufacturers
Rohde & Schwarz
Model
ESW
Parameters
Frequency Ranges from 1 Hz to 8 GHz, 26.5 GHz or 44 GHz
Other Recommendations
44GHz EMI Test Receiver, 970MHz Real-Time Bandwidth, FFT Time Domain Scan for Compliance Testing
📡
1Hz-44GHz coverage (Source: Input description)
⚡
970MHz bandwidth (Option) (Source: Input description)
📜
CISPR/MIL-STD/FCC/DO-160 (Source: Input description)
| Parameter | Specification | Application Value |
|---|---|---|
| Frequency Range | 1Hz-44GHz | Covers DC to mmWave EMI sources |
| FFT Bandwidth | 970MHz (real-time option) | Simultaneous capture of CISPR bands C+D |
| Dynamic Range | Industry-leading (>100dB typical) | Detects weak emissions near strong signals |
Core Application Scenarios
Commercial Product Certification — Full compliance testing for FCC/CE marking (Based on standards support)
Aerospace/Military Validation — MIL-STD-461/DO-160 compliance for avionics systems (Based on standards support)
Technical Deep Dive
Real-Time EMI Analysis Architecture
Features "Wideband FFT Engine + Multi-Standard Detector" design: 970MHz real-time bandwidth captures entire CISPR bands C (30-300MHz) and D (300-1000MHz) simultaneously (Source: Input description). Hardware-accelerated DSP runs CISPR QP/AV detectors in real-time during wideband acquisition. Time-domain FFT scan reduces measurement time by 100x vs traditional stepped scans. Phase-coherent receivers maintain amplitude accuracy (±0.5dB) across full 44GHz range.
| Technical Dimension | R&S ESW | Traditional EMI Receiver | Advantage |
|---|---|---|---|
| Scan Speed | FFT time-domain scan (100x faster) | Stepped frequency sweep | Reduces certification test time from hours to minutes |
| Real-Time Processing | 970MHz bandwidth with live detectors | <10MHz typical | Captures transient/intermittent emissions |
Full-Compliance EMI Test Workflow
Setup: Connect antenna/sensors to receiver, load MIL-STD-461 test template
Scan: Initiate FFT time-domain scan (1-18GHz in <2 minutes)
Analysis:
- Real-time spectrogram identifies intermittent emissions
- Automated CISPR QP/AV detectors flag exceedances
- 970MHz bandwidth captures wideband transientsReporting: Auto-generate standards-compliant test report with margin analysis
Real-Time Bandwidth Boundary
970MHz real-time bandwidth requires option (standard bandwidth lower) (Based on option description). Mitigation: ① For full CISPR band coverage, enable wideband option; ② For cost-sensitive applications, use FFT scan with standard bandwidth (sequential band coverage).
