The Keysight K281C (formerly Agilent) is a high-performance waveguide-to-coaxial adapter designed to transition waveguide transmission lines to 50-ohm coaxial systems. Operating in the K-band from 18.0 to 26.5 GHz, it features an EIA WR-42 waveguide interface with a UG-597/U flange on one end, and a 3.5 mm female coaxial connector on the other. It offers a low SWR of less than 1.07 across the full waveguide band, and supports bi-directional power transmission.
Specifications
General Information
| Parameter | Value |
|---|---|
| Adapter Type | Waveguide to Coaxial |
| Waveguide Band | K-band |
| Frequency Range | 18.0 to 26.5 GHz |
| Nominal Impedance | 50 Ohm |
| Geometry | Right Angle |
Electrical Specifications
| Parameter | Value |
|---|---|
| Frequency Range Minimum | 18.0 GHz |
| Frequency Range Maximum | 26.5 GHz |
| Maximum SWR | 1.15 |
| Transmission Direction | Bi-directional |
Connector 1 Specifications
| Parameter | Value |
|---|---|
| Connector 1 Series | 3.5 mm |
| Connector 1 Gender | Female |
| Connector 1 Impedance | 50 Ohm |
Connector 2 Specifications
| Parameter | Value |
|---|---|
| Connector 2 Waveguide Size | EIA WR-42 |
| Connector 2 Waveguide Standard Compliance | MIL-W-85/1-103 |
| Connector 2 Flange Designator | UG-597/U |
| Connector 2 Flange Standard Compliance | MIL-F-3922/54C-002 |
Technology
Waveguide to Coaxial Adapter
Applications
RF and Microwave Test and Measurement