M9383B VXG-m Microwave Signal Generator
Manufacturers
Keysight
Other Recommendations
Dual-Channel Microwave Signal Generator, 44GHz Frequency, 2GHz Bandwidth for 5G mmWave and MIMO OTA Testing
📡44GHz
Industry-first dual-channel up to 44GHz (Source: Input description)
📊2GHz
RF bandwidth for wideband signals (Source: Input description)
🔄
LO/baseband sync for MIMO testing (Source: Input description)
| Parameter | Specification | Application Value |
|---|---|---|
| Frequency Range | 1MHz-44GHz | Covers 5G FR2 bands (24/28/39GHz) and satellite communications |
| Output Power | >+18dBm at 44GHz | Compensates for OTA path loss in mmWave chamber testing |
| Signal Compliance | 3GPP 5G NR FR1/FR2 | Generates standards-compliant signals for certification testing |
Core Application Scenarios
5G mmWave Beamforming Validation — Dual-channel phase coherence enables MIMO OTA testing (Based on sync capability)
Satellite Payload Testing — 44GHz frequency covers Ka-band uplink/downlink signals (Based on frequency range)
Technical Deep Dive
mmWave Signal Generation Architecture
Features "Dual-Channel Synthesizer + Wideband I/Q Modulator" design: Independent channels with <0.1° phase stability enable precise beamforming simulation (Source: Phase coherence spec). 2GHz RF bandwidth supports 5G NR 400MHz carriers with 4x oversampling. High-power amplifiers (+18dBm) compensate for waveguide losses in OTA chambers. PathWave software generates 3GPP-compliant 5G FR2 waveforms with configurable channel coding and MIMO configurations.
| Technical Dimension | M9383B VXG-m | Standard Signal Generator | Advantage |
|---|---|---|---|
| MIMO Testing | Phase-coherent dual channels (<0.1° stability) | Single channel or unsynchronized multi-box | Eliminates phase calibration, reduces beamforming test setup time by 70% |
| OTA Testing | +18dBm output at 44GHz | ≤+10dBm typical at mmWave frequencies | Compensates for 8-10dB chamber loss without external amplifiers |
5G FR2 Beamforming Test Workflow
Connection: Dual outputs to phased array antenna inputs, enable phase sync mode
Configuration:
- Load 5G NR FR2 waveform (400MHz BW, 256QAM)
- Set frequency to 28GHz, output power to +15dBm
- Configure beam angles: 0°/30°/60° with 2μs switchingTesting:
- Measure EIRP at different beam angles (>65dBm peak)
- Verify beam switching time (<5μs)
- Analyze EVM for 256QAM signals (<3.5%)Analysis: Generate beam pattern report with side-lobe suppression data
Phase Coherence Boundary
Phase stability degrades above 40°C ambient temperature (Based on thermal design). Mitigation: ① Maintain lab temperature at 23±3°C; ② For high-temp environments, enable internal phase compensation algorithm (reduces drift by 60%).
