The Keysight 85131E is a high-performance 3.5 mm flexible cable set designed for use with vector network analyzers (VNAs). Operating from DC to 26.5 GHz, this set provides excellent phase and amplitude stability under flexure, making it ideal for precise, repeatable RF and microwave measurements.
Specifications
General & Configuration
| Parameter | Value |
|---|---|
| Cable Type | Flexible |
| Set Configuration | Two-cable set |
| VNA-Side Connector (Both Cables) | NMD 3.5 mm (female) |
| DUT-Side Connector (Cable 1) | 3.5 mm (male) |
| DUT-Side Connector (Cable 2) | Precision Slotless 3.5 mm (female) / PSC-3.5 f |
Electrical Performance
| Parameter | Value |
|---|---|
| Frequency Range | DC to 26.5 GHz |
| Nominal Impedance | 50 Ω |
Physical & Mechanical
| Parameter | Value |
|---|---|
| Cable Length | 96.5 cm (38 in) |
Electrical Specifications
| Parameter | Value |
|---|---|
| Maximum SWR | 1.35 |
| Maximum Insertion Loss | 1.5 dB |
Mechanical Specifications
| Parameter | Value |
|---|---|
| Minimum Bend Radius | 76.2 mm |
Performance
| Parameter | Value |
|---|---|
| Phase Stability with Bending | < 0.12° × f + 0.13°, where f is frequency in GHz (at 7.6 cm bend radius) |
| Magnitude Stability with Bending | < 0.009 dB × f + 0.01 dB, where f is frequency in GHz (at 7.6 cm bend radius) |
Technology
RF & Microwave Coaxial Cables
Applications
VNA Test Port Extension and Measurement