The Keysight V11644A is a high-precision WR-15 waveguide calibration kit designed for vector network analyzers (VNAs) operating in the V-band (50 GHz to 75 GHz). It supports advanced calibration techniques such as TRL (Thru-Reflect-Line) and Offset Short, providing the essential standards—including precision fixed loads, a short, a shim, and a 50 mm straight section—needed to establish a highly accurate measurement reference plane.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | None (Mechanical Waveguide Standards) |
| Calibration Kit Type | Mechanical |
Physical
| Parameter | Value |
|---|---|
| Power Supply | None (Passive Mechanical Devices) |
| Operating Temperature | 20 °C to 26 °C |
General Specifications
| Parameter | Value |
|---|---|
| Waveguide Size | WR-15 |
| Frequency Range | 50 GHz to 75 GHz (V-band) |
| Flange Interface | Precision UG-385/U |
| Nominal Impedance | Waveguide (characteristic impedance is frequency-dependent) |
| IEC Waveguide Size Equivalent | R620 |
| UK Waveguide Size Equivalent | WG25 |
| Material & Plating | Gold-plated copper alloy / brass |
| Calibration Methods Supported | TRL (Thru-Reflect-Line), LRL, Offset Short |
| Compatible Vector Network Analyzers | Keysight / Agilent PNA and PNA-X Series (with V-band millimeter-wave test set controllers/frequency extenders) |
Kit Contents
| Parameter | Value |
|---|---|
| Precision Waveguide Straight Section | 1 included (50 mm nominal length) |
| Precision Waveguide Straight Length | 50 mm |
| Fixed Short Standard | 1 included |
| Precision Waveguide Shim | 1 included (1/4 wavelength nominal offset) |
| Precision Fixed Terminations | 2 included |
| Alignment Dowel Pins | 4 included |
| Flange Coupling Screws | Included (hex socket head cap screws) |
| Hex Ball Driver | Included |
| Calibration Definition Data Media | Included (USB drive / floppy disk depending on vintage) |
| Protective Storage Case | Included (foam-lined wooden or plastic case) |
| Fixed Terminations Quantity | 2 |
| Short Circuits Quantity | 1 |
| Waveguide Straight Sections Quantity | 1 |
| Waveguide Shims Quantity | 1 |
Environmental & Calibration Traceability
| Parameter | Value |
|---|---|
| Calibration Reference Temperature Range | 23 °C ± 3 °C |
| Recommended Calibration Interval | 12 months |
Electrical Specifications
| Parameter | Value |
|---|---|
| Termination Maximum VSWR | 1.06 |
| Short Circuit Reflection Coefficient | ≥ 0.99 |
| Precision Waveguide Straight Return Loss | >= 46 dB |
| Fixed Termination Return Loss | >= 30 dB |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 °C to +75 °C |
| Storage Humidity Range | Up to 95% RH (non-condensing) |
Mechanical
| Parameter | Value |
|---|---|
| Waveguide Inner Width | 3.759 mm (0.148 in) |
| Waveguide Inner Height | 1.880 mm (0.074 in) |
| Flange Screw Thread | 4-40 UNC |
| Hex Ball Driver Size | 3/32 in |
Technology
Waveguide
Applications
Vector Network Analyzer (VNA) Calibration