N5173B EXG X-Series Microwave Analog Signal Generator
Manufacturers
Keysight
Other Recommendations
40GHz Microwave Signal Generator, +20dBm Output, ±5ppb OCXO Stability for Parametric Testing and Receiver Verification
📡40GHz
Up to 40GHz frequency range (Source: Input description)
⚡600μs
Frequency switching speed (Source: Input description)
🎯±5ppb
High-precision timing reference (Source: Input description)
| Core Parameter | Specification | Application Value |
|---|---|---|
| Frequency Coverage | 9kHz-40GHz (option-dependent) | Tests microwave backhaul links (e.g., 28GHz/39GHz bands) |
| Output Performance | +20dBm at 20GHz, harmonics ≤-55dBc | Drives mixers/amplifiers without external amplification |
| Frequency Stability | OCXO aging <±5ppb/day | Maintains phase coherence in long-duration satellite tests |
Core Application Scenarios
Microwave Backhaul Testing — LO up-conversion for E-band (71-76GHz) radios using 28GHz source (Based on frequency coverage)
Satellite Receiver Validation — CW blocking tests with ±5ppb stability for Doppler shift simulation (Based on OCXO spec)
Technical Deep Dive
High-Stability Microwave Architecture
Features "Phase-Locked Synthesizer + Precision OCXO" design: Direct microwave synthesis covers 9kHz-40GHz with ≤-55dBc harmonic suppression (Source: Input description). High-power amplifiers deliver +20dBm output at 20GHz. Integrated step attenuator (0.1dB resolution) enables precise power control. Ultra-stable OCXO (<±5ppb/day aging) ensures long-term frequency accuracy. Fast-switching PLL achieves 600μs frequency hops for rapid multi-band testing.
| Technical Dimension | N5173B EXG | Entry-Level Generator | Advantage |
|---|---|---|---|
| Harmonic Suppression | ≤-55dBc (fundamental) | ≤-40dBc typical | Reduces spurious signals by 15dB for cleaner LO injection |
| Test Throughput | 600μs frequency switching | 2-5ms typical | Cuts multi-band filter test time by 70% |
Microwave Filter Characterization Workflow
Connection: Connect generator to filter input, spectrum analyzer to output
Configuration:
- Set frequency range: 24-40GHz (Ka-band)
- Output power: +10dBm (below filter saturation)
- Enable step attenuation: 0.1dB resolutionTesting:
- Sweep frequency: Measure insertion loss (<3dB target)
- Verify harmonic suppression: ≤-55dBc at 2x fundamental
- Check rejection band: >40dB attenuation at 38GHzAnalysis: Generate S-parameter report with pass/fail markers
Power Output Boundary
Output power decreases to +5dBm at 40GHz (Based on typical microwave generator characteristics). Mitigation: ① For high-power 40GHz applications, add external amplifier; ② Use at lower frequencies (≤20GHz) for maximum +20dBm output.
